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WO2019116066A1 - Procédé et système permettant de déterminer l'orientation d'une personne par rapport à un véhicule, en particulier d'un travailleur par rapport à un véhicule de construction - Google Patents

Procédé et système permettant de déterminer l'orientation d'une personne par rapport à un véhicule, en particulier d'un travailleur par rapport à un véhicule de construction Download PDF

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Publication number
WO2019116066A1
WO2019116066A1 PCT/IB2017/001712 IB2017001712W WO2019116066A1 WO 2019116066 A1 WO2019116066 A1 WO 2019116066A1 IB 2017001712 W IB2017001712 W IB 2017001712W WO 2019116066 A1 WO2019116066 A1 WO 2019116066A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
portable equipment
signal
respect
orientation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IB2017/001712
Other languages
English (en)
Inventor
Ahcène NEDJIMI
Lilian BRUYERE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volvo Construction Equipment AB
Original Assignee
Volvo Construction Equipment AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Volvo Construction Equipment AB filed Critical Volvo Construction Equipment AB
Priority to PCT/IB2017/001712 priority Critical patent/WO2019116066A1/fr
Publication of WO2019116066A1 publication Critical patent/WO2019116066A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
    • F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
    • F16P3/12—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine
    • F16P3/14—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes

Definitions

  • the present invention concerns a method and system for determining an orientation of a person with respect to a vehicle, in particular of a worker with respect to a construction vehicle that is at least partially electric driven.
  • This includes fully electric vehicles, hybrid vehicles and fuel cell vehicles.
  • a construction vehicle includes a combustion engine and hydraulic actuators which generate a noise at a sufficient level to be heard by the driver (operator) and by any person standing around the vehicle (workers and/or bystanders).
  • This noise naturally reflects the working status of the vehicle and warns the person(s) standing around the vehicle when the vehicle is moving. In a way, this noise is beneficial to the safety of the workers and/or bystanders, because it helps preventing accidents.
  • JP 2000 282516 teaches to equip the workers near a construction vehicle with earphones.
  • the worker receives an alarm sound via the earphones.
  • the earphones are connected to a radio receiver and the vehicle includes a radio transmitter for transmitting alarm radio waves to the receiver.
  • This document discloses the principle of alerting a worker of the displacement of a construction vehicle via the use of headphones.
  • the described method does not take into account the orientation of the worker with respect to the machine.
  • the aim of the present invention is to propose an improved method and system that remedy the abovementioned drawbacks.
  • the invention concerns a system for determining an orientation of at least one person with respect to a vehicle, in particular of a worker with respect to a construction vehicle.
  • the system includes:
  • At least one portable equipment that is preferably a headset or helmet with audio speakers, to be worn by a person located in the vicinity of the vehicle.
  • the vehicle and the portable equipment comprise positioning devices able to generate information relative to the orientation of the portable equipment with respect to said vehicle.
  • the portable equipment comprises an electronic control unit programmed to calculate an orientation of the portable equipment with respect to the vehicle depending at least on the information received from the positioning devices.
  • the invention it is possible to determine the orientation of a person with respect to a vehicle. The worker may then know precisely his/her orientation with respect to the vehicle. Also, considering that the portable equipment includes headphones, it is possible to create a multi-directional audible perspective (stereo). Thus the worker can receive an audio signal reflecting the position of the vehicle to know where is the potential danger, behind him/her, on his/her left or right side.
  • the vehicle may comprise a first positioning device comprising a first global positioning system giving a geographic position of the vehicle and a transmitter able to generate and transmit a signal relative to the position of the vehicle.
  • the portable equipment may comprise at least one receiver for receiving the signal transmitted by the transmitter, a second positioning device comprising a second global positioning system giving a geographic position of the portable equipment, and a third positioning device comprising a compass to determine an orientation of the portable equipment with respect to a direction of earth.
  • Said compass can be, for instance, a magnetic, a gyroscopic, an electronic or a satellite compass.
  • the electronic control unit is programmed to calculate a relative position of the vehicle with respect to the position of the portable equipment by comparing the geographic position of the portable equipment and the geographic position of the vehicle.
  • the electronic control unit is further programmed to determine an orientation of the portable equipment with respect to the vehicle depending on the relative position of the vehicle and depending on the orientation of the portable equipment with respect to the direction of earth.
  • the first embodiment represents a reliable system to determine an orientation of at least one person with respect to a vehicle.
  • said positioning devices comprise an emitter, a first receiver and a second receiver for receiving a signal emitted by the emitter.
  • the emitter is attached to the vehicle and the first and second receivers are attached to the portable equipment.
  • the electronic control unit is programmed to calculate the time difference between the reception time of the signal to the first receiver of the portable equipment and the reception time of the signal to the second receiver of the portable equipment.
  • the electronic control unit is also programmed to determine, from said time difference, an orientation of the portable equipment with respect to the vehicle.
  • the second embodiment represents a reliable and very simple system to determine an orientation of at least one person with respect to a vehicle.
  • the electronic control unit is programmed to compare the transmission time of the signal from the vehicle emitter to the first receiver with the transmission time of the signal from the vehicle emitter to the second receiver.
  • the electronic control unit is also programmed to determine, from said comparison, an orientation of the portable equipment with respect to the vehicle.
  • the invention also concerns a method for determining an orientation of at least one person with respect to a vehicle, in particular of a worker with respect to a construction vehicle.
  • the method uses a system such as previously described .
  • the method includes the following steps consisting in:
  • the method uses a system according to the first embodiment of the system previously described.
  • the method includes the following steps consisting in: i. determining a geographic position of the vehicle,
  • the method uses a system according to the second embodiment previously described.
  • the method includes the following steps consisting in:
  • step c) consists, alternatively, in calculating the time difference between the transmission time of the signal from the vehicle emitter to the first receiver of the portable equipment with the transmission time of the signal from the vehicle emitter to the second receiver of the portable equipment and step d) consists in determining an orientation of the headset with respect to the vehicle in function of said time difference.
  • the method preferably comprises a further step of communicating from the vehicle to the portable equipment an emitting time at which said signal is emitted from the vehicle emitter.
  • the step c) comprises a sub-step of comparing the reception time of the signal to the first receiver with the emitting time from the vehicle emitter and the reception time of the signal to the second receiver with the emitting time from the vehicle emitter and a sub-step of respectively calculating the transmission time of the signal from the vehicle emitter to the first receiver and the transmission time of the signal from the vehicle emitter to the second receiver.
  • the portable equipment such as previously describes in the system and in the method according to the invention is a headset or a helmet including two speakers.
  • the method includes an additional step consisting in emitting a stereo or surround audio signal through the speakers when depending on the orientation of the portable equipment with respect to the vehicle.
  • Different audio signals can be emitted from one speaker to the other depending on the orientation of the portable equipment with respect to the vehicle.
  • the intensity and/or the pattern of the audio signal can be different from one speaker to the other depending on the orientation of the portable equipment with respect to the vehicle.
  • the person located in the vicinity of the vehicle and wearing the headset or helmet according to the invention can receive an audio signal indicating the direction of a potential danger that may be caused by the vehicle in motion.
  • the portable equipment includes preferably three misaligned receivers. Owing to this configuration, the orientation of the portable equipment with respect to the first unit can be deduced around 360 degrees.
  • the method may include a further step consisting in emitting a specific audio signal through the speakers when the person faces away from the vehicle during a period above a certain threshold.
  • the method may include an additional step consisting in calculating the distance between the vehicle and the portable equipment.
  • the method may comprise a further step of communicating from the vehicle to the portable equipment an emitting time at which a signal is transmitted from the vehicle emitter to a receiver of the portable equipment.
  • the step of calculating the distance between the vehicle and the portable equipment may advantageously comprises the following sub-steps:
  • the intensity of the audio signal depends on the distance between the portable equipment and the vehicle.
  • a specific audio signal is emitted through the speakers when the distance falls below a certain threshold distance, for instance, below 5 meters.
  • the invention also concerns a method to determine the orientation of a vehicle with respect to a portable equipment.
  • the portable equipment may also comprise a first emitter.
  • the vehicle may include at least a first receiver and a second receiver, for receiving a signal transmitted by the second emitter of the portable equipment and an electronic control unit.
  • the method may further comprise the following steps to determine the orientation of the vehicle with respect to the portable equipment:
  • Said third aspect of the invention can be considered as such or can constitute an improvement of the second aspect of the invention.
  • the intensity and / or the pattern of the audio signal depends on the orientation of the vehicle with respect to the portable equipment.
  • the intensity and / or the pattern of the audio signal is adjusted and/or modified when it is determined that the person wearing the portable equipment is facing away from the construction vehicle and the vehicle is oriented such that its tool is oriented towards the person.
  • the orientation of the portable equipment with respect to a vehicle and the position of the portable equipment in a reference frame tied to the vehicle are displayed onto a radar screen boarded on the vehicle.
  • the vehicle and the portable equipment include each two receivers preferably three misaligned receivers, and one emitter.
  • the signal is an ultrasound signal.
  • the vehicle is at least partially electric driven.
  • FIG. 1 to 5 show respectively five embodiments of a system for determining an orientation of a person with respect to a vehicle, in particular of a worker with respect to a construction vehicle;
  • FIG. 6 illustrates a radar boarded on the vehicle of the system according to any one of the five embodiments of the invention
  • FIG. 7 is a flow chart representing the steps of an implementation of a method according to the invention for determining an orientation of a person with respect to a vehicle.
  • FIG. 8 is a flow chart representing the steps of another implementation of the method.
  • Figure 1 represents a vehicle 2 and a person near the vehicle 2.
  • the vehicle 2 is a construction vehicle, such as an excavator, a crane, a transport truck, a truck crane, etc.
  • the invention is preferably applicable to vehicles that are quite silent with regard to their environment.
  • the present invention is well suited especially for vehicles that are at least partially electric driven.
  • the vehicle 2 may be, amongst others, fully electric, hybrid or with a fuel cell.
  • Electric or hybrid vehicles are silent vehicles, which are particularly suited for working into restricted sound level areas (e.g. Hospital, indoor areas) and/or at night.
  • the vehicle 2 includes an emitter S3 which is, in the example, an ultrasound emitter.
  • the vehicle 2 may also include a radio transmitter R2.
  • the vehicle 2 may include wheels or caterpillars.
  • the person may be a worker working in the surroundings of the vehicle 2. In the example, the person is looking in a direction D1 opposite to the vehicle 2. Then, in the example, the person faces away from the vehicle 2. The person is located in the vicinity of the vehicle 2, meaning that the person is not in the vehicle. Typically, the person may be at a distance of 5 to 10 meters from the vehicle 2.
  • the person is wearing a portable equipment 1 which is, for instance, a headset or a helmet comprising audio speakers.
  • the portable equipment 1 includes at least two receivers S1 and S2 for receiving a signal transmitted by the emitter S3.
  • the emitter S3 can also serve as receiver and the receivers S1 and S2 can also serve as emitters.
  • the components S1 to S3 can be emitter-receiver modules, in particular emitter-receiver ultrasound modules.
  • the portable equipment 1 also includes an electronic control unit 5.
  • the electronic control unit 5 is preferably programmed to calculate the time difference t2-t1 between the reception time t1 of the signal L1 to the first receiver S1 of the portable equipment and the reception time t2 of the signal L1 to the second receiver S2 of the portable equipment 1 and is programmed to determine from said time difference an orientation of the portable equipment 1 with respect to the vehicle 2.
  • the electronic control unit 5 can be programmed to calculate the time difference between the transmission time t1-t3 of the signal L1 sent from the vehicle emitter S3 to the first receiver S1 with the transmission time t2-t3 of the signal L1 sent from the vehicle emitter S3 to the second receiver S2 and is programmed to determine from said time difference an orientation of the portable equipment 1 with respect to the vehicle 2.
  • the emitter S3 and the two receivers S1 and S2 with the electronic control unit 5 make it possible to determine an orientation of the portable equipment 1 and thus an orientation of the person wearing said portable equipment 1 with respect to the vehicle 2, i.e. the angular position of the vehicle 2 in a reference frame (not represented) tied to the portable equipment.
  • this allows determining whether the person faces the vehicle 2 or, on the contrary, faces away from the vehicle 2.
  • the vehicle 2 comprising said emitter S3 and the portable equipment 1 comprising the electronic control unit 5, the first receiver S1 and the second receivers S2 define together an embodiment of a system according to the invention.
  • the portable equipment 1 may also include a radio receiver R1 for receiving a radio signal sent by the radio transmitter R2.
  • a first step 101 the emitter S3 emits, at a time t3, a signal L1.
  • second step 102 the first and the second receivers S1 and S2 receive the emitted signal L1.
  • the receiver S1 is closer to the emitter S3 than receiver S2. Accordingly, receiver S2 receives the signal L1 emitted by S3 with a delay.
  • a third step 103 the electronic control unit 5 measures the time t2 at which the receiver S2 receives the signal and the time t1 at which the receiver S1 receives the signal.
  • step 104 the electronic control unit 5 calculates the time difference t2-t1 between the reception time t1 of the signal L1 to the first receiver S1 and the reception time t2 of the signal L1 to the second receiver S2.
  • a fifth step 105 the electronic control unit 5 determines an orientation of the portable equipment 1 with respect to the vehicle 2 in function of said time difference t2-t1.
  • the emitting time t3 at which the signal L1 has been sent by the vehicle emitter S3 is communicated, via radio waves, by the radio transmitter R2 to the radio receiver R1 of the portable equipment 1.
  • the radio receiver R1 communicates emitting time t3 to the electronic control unit 5.
  • the emitting time t3 may also be communicated to the electronic control unit 5 in order to calculate a transmission time t1-t3 of the signal L1 from the vehicle emitter to the first receiver S1 and a transmission time t2-t3 of the signal L1 from the vehicle emitter S3 to the second receiver S2.
  • the electronic control unit 5 is then able to compare the transmission time t1-t3 of the signal L1 from the vehicle emitter S3 to the first receiver S1 and the transmission time t2-t3 of the signal L1 the vehicle emitter S3 to the second receiver S2, the electronic control unit 5 calculate a time difference between both transmission times t1-t3 and t2-t3 in order to determine an orientation of the headset with respect to the vehicle in function of said comparison.
  • d13 denotes the distance between the emitter S3 and the receiver S1 and d23 denotes the distance between the emitter S3 and the receiver S2.
  • the time difference t2-t1 is proportional to the difference between distances d13 and d23.
  • the right angle is on C
  • the length of the segment between points B and C corresponds approximately to the difference between distances d13 and d23
  • the distance between points A and B corresponds to the distance between the two receivers S1 and S2 of the portable equipment 1.
  • the distance AB is known and the distance BC can be estimated from the time difference t2-t1.
  • the estimation of the difference between distances d13 and d23 by evaluation of the length of segment BC becomes sufficiently accurate for the purpose of the invention when the distance between the portable equipment 1 and the vehicle 2 is more than one meter and distance between both receivers S1 and S2 is inferior to 30 cm.
  • the difference between the estimated difference between distances d13 and d23 and the actual difference between distances d13 and d23 becomes negligible when distance between the portable equipment 1 and the vehicle 2 is higher than one meter.
  • the portable equipment 1 includes a third receiver S2’.
  • the three receivers S1 , S2 and S2’ are misaligned.
  • angle a it is also possible to calculate two more angles representative of the angular position of the vehicle 2 in a reference frame tied to the portable equipment 1. This makes it possible to determine the orientation of the portable equipment 1 with respect to the vehicle 2 around 360 degrees. In particular, this allows determining whether the person is front to the vehicle 2 or turns his back to the vehicle 2.
  • an audio signal is emitted by the speakers when the vehicle 2 is operating.
  • the driver has the possibility to turn off in a remote manner the speakers of the person.
  • the person may be alerted by a specific audio signal.
  • the speakers are stereo or surround speakers and the audio signal is a stereo or surround signal depending on the angular position of the vehicle 2 in a reference frame tied to the person. This creates an illusion of multi-directional audible perspective (stereo).
  • the audio signal is a reproduction of the noise of a vehicle with a thermal engine and/or with a hydraulic power system.
  • the noise reproduces the frequencies and tune of a combustion engine sound and/or of a hydraulic system.
  • the generated sound may depend on the speed of the electric motor and/or of the load. Accordingly, the audio signal played through the speakers is perceived as natural.
  • the worker may hear the displacement of the vehicle 2 behind his back, similarly to a conventional vehicle with a thermal engine and/or a noisy hydraulic system.
  • the person can rely on its hearing to feel a danger and will have the feeling of working near a conventional noisy vehicle.
  • the environment in contrast, will not be influenced by any generated noise and benefit from the low noise level of vehicle 2.
  • the distance between the portable equipment 1 and the vehicle 2 may be calculated and the intensity of the audio signal in the headphones depends on the distance between the portable equipment 1 and the vehicle 2, i.e. the distance d13 or d23.
  • the distance between the portable equipment 1 and the vehicle 2 may be calculated by calculating a transmission time of the signal L1 by comparing a time of reception of the signal L1 by the portable equipment receiver S1 or S2 with the emitting time t3 of the signal L1 sent by the vehicle emitter S3. It is then deduced from the transmission time of the signal L1, the distance separating the portable equipment from the vehicle.
  • the signal sent to determine the distance d13 or d23 can be the same L1 as the one used to determine the orientation of the portable equipment with respect to the vehicle 2 or can be a new signal L3.
  • the volume of the generated sound in the speakers is adapted to the distance with a defined attenuation rate. This emulates approximately the feeling of distance to the noise source(s) of the vehicle 2.
  • a specific audio signal can be emitted through the speakers when the distance between the person and the vehicle 2 falls below a certain threshold, such as 5 m.
  • a specific audio signal such as an alarm sound
  • a specific audio signal can be emitted through the headphones when the person faces away from the vehicle 2 during a period above a certain threshold, such as 30 seconds.
  • the same signal or a different signal can be played when the person is immobile for a certain period.
  • the vehicle 2 includes a first and a second receiver S3 and S4 and a vehicle electronic control unit 6.
  • the portable equipment 1 includes one emitter S1, in particular one ultrasound emitter S1.
  • the emitter S1 sends a signal L4 to the receivers S3 and S4 of the vehicle 2.
  • the time t1 at which the signal is sent by the emitter S1 is transmitted to the vehicle 2 by means of the radio transmitter R1 of the portable equipment 1, which communicates via radio waves with a radio receiver R2 boarded on the vehicle 2.
  • the electronic control unit 6 measures the time t3 at which the receiver S3 receives the signal L4 and the time t4 at which the receiver S4 receives the signal L4. The vehicle electronic control unit 6 then calculates the time difference t4-t3 between the transmission time t3-t1 or reception time t3 of the signal L4 to the first receiver S3 and the transmission time t4-t1 or reception time t4 of the signal L4 to the second receiver S4.
  • the receiver S3 is closer to the emitter S1 than receiver S4. Accordingly, receiver S4 receives the signal emitted by S1 with a delay.
  • d13 denotes the distance between the emitter S1 and receiver S3 and d14 denotes the distance between the emitter S1 and receiver S4.
  • the time difference t4-t3 is proportional to the difference between distances d 13 and d14.
  • the right angle is on F, the length of the segment between points E and F corresponds approximately to the difference between distances d13 and d14 and the distance between points D and E corresponds to the distance between the two receivers S3 and S4 of the vehicle.
  • the distance DE is known and the distance EF can be estimated from the time difference t4-t3.
  • the vehicle 2 includes a third receiver S4’.
  • the three receivers S3, S4 and S4’ are misaligned.
  • angle b it is also possible to calculate two more angles representative of the angular position of the person in a reference frame tied to the vehicle 2. This makes it possible determining the orientation of the portable equipment 1 with respect to the vehicle 2 around 360 degrees. In particular, this allows determining whether the person is front of or behind the vehicle 2.
  • the intensity and/or the pattern of the audio signal depends on the angular position of the portable equipment 1 in a reference frame tied to the vehicle 2. For instance, if the person is in a dangerous area, such as the blind spots ant the area behind the vehicle, the intensity of the audio signal can be set to a higher level. In this way, the person may be alerted of an increased danger.
  • the intensity and / or the pattern of the audio signal can be adjusted and/or modified when it is determined that the person wearing the portable equipment 1 is facing away from the construction vehicle 2 and the vehicle 2 is oriented such that its tool is oriented towards the person.
  • Such a configuration is represented on figure 6 wherein a person 8 is facing away from the construction vehicle 2 (i.e. looks in opposite direction D2 to the vehicle) and the vehicle 2 is oriented such that its tool 9 is oriented towards the person.
  • the vehicle 2 comprises a first global positioning system P1 giving a geographic position of the vehicle 2 and a transmitter R2, preferably a radio transmitter, able to generate and transmit a signal L2 relative to the position of the vehicle 2.
  • the portable equipment 1 comprises at least one receiver R1, preferably a radio receiver, for receiving the signal L2 transmitted by the transmitter R2, a second global positioning system P2 giving a geographic position of the portable equipment 1, and a compass P3 to determine an orientation of the portable equipment 1 with respect to a direction of earth.
  • the electronic control unit 5 of the portable equipment 1 is programmed to calculate a relative position of the vehicle 2 relatively to the position of the portable equipment 1 by comparing the geographic position of the portable equipment 1 and the geographic position of the vehicle 2.
  • the electronic control unit 5 is also programmed to determine an orientation of the portable equipment 1 with respect to the vehicle 2 depending on the relative position of the vehicle 2 and depending on the orientation of the portable equipment 1 with respect to the direction of earth.
  • determining a geographic position of the vehicle 2 i. in a first step 201 , determining a geographic position of the vehicle 2, ii. in a second step 202, generating and transmitting from the vehicle transmitter R2 to the portable equipment receiver R1 a signal L2 relative to the position of the vehicle 2,
  • a third step 203 receiving, by the portable equipment receiver R1 , the signal L2 transmitted by the vehicle transmitter R2,
  • a fifth step 205 determining an orientation of the portable equipment 1 with respect to a direction of earth
  • a sixth step 206 calculating a relative position of the vehicle 2 with respect to the position of the portable equipment by comparing the geographic position of the portable equipment and the geographic position of the vehicle 2,
  • a seventh step 207 determining an orientation of the portable equipment 1 with respect to the vehicle 2 depending on the relative position of the vehicle 2 and depending on the orientation of the portable equipment 1 with respect to the direction of earth.
  • the orientation of the portable equipment 1 with respect to a vehicle 2 and the position of the portable equipment 1 in a reference frame tied to the vehicle 2 are displayed onto a radar screen 4 boarded on the vehicle, in particular in the vehicle cabin.
  • arrows D2, D3, D4, D5 may show the orientation of the portable equipment 1 reflecting the orientation of people around the vehicle 2.
  • Arrows D2 to D5 show the directions in which the people nearby the vehicle 2 look.
  • the driver is made aware of the orientation and position of the person around the vehicle.
  • the method and system have been described here-above with one person only, but this is also applicable to a plurality of persons. In this case, each person will have to wear the specific portable equipment, in particular headset or helmet provided with speakers.
  • the portable equipment 1 does not include speakers.
  • speakers may be replaced by a vibrating system.
  • Such vibrating system may be integrated to a jacket.
  • the transmitted signals are ultrasonic.
  • another type of transmission signals may be envisaged, such as Bluetooth, radio, etc.
  • the driver may also have headphones or headset. Unlike the headset of the person, which are wireless. The headset of the driver can be wired.
  • the headset includes an On/Off button. This enables the person to discuss with another person without being bothered by the audio signal in the headset.
  • the headset 1 of each person includes a microphone, for enabling the persons around the vehicle to communicate with each other. Also, the driver may have a microphone to speak directly with the persons near the vehicle through the headset.
  • the invention is not limited to the described embodiments.
  • the features of the embodiments may be combined to generate alternative embodiments.
  • the features of the second and fourth embodiments or of the first and third embodiments may be combined to obtain a method that can be used for determining, in one hand, the angular position of the person in a reference frame tied to the vehicle 2 and, in the other hand, the angular position of the vehicle 2 in a reference frame tied to the person.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

L'invention concerne un système permettant de déterminer l'orientation d'au moins une personne par rapport à un véhicule (2), en particulier d'un travailleur par rapport à un véhicule de construction. Le système comprend un véhicule, au moins un équipement portable (1), qui est de préférence un casque audio ou un casque de protection comportant des haut-parleurs, destiné à être porté par une personne située à proximité du véhicule. Le véhicule (2) et l'équipement portable comprennent des dispositifs de positionnement (S1, S2, S3) aptes à générer des informations relatives à l'orientation de l'équipement portable par rapport audit véhicule (2). L'équipement portable (1) comprend une unité de commande électronique (5) programmée pour calculer l'orientation de l'équipement portable (1) par rapport au véhicule (2) en fonction au moins des informations reçues en provenance des dispositifs de positionnement (S1, S2, S3).
PCT/IB2017/001712 2017-12-14 2017-12-14 Procédé et système permettant de déterminer l'orientation d'une personne par rapport à un véhicule, en particulier d'un travailleur par rapport à un véhicule de construction Ceased WO2019116066A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/IB2017/001712 WO2019116066A1 (fr) 2017-12-14 2017-12-14 Procédé et système permettant de déterminer l'orientation d'une personne par rapport à un véhicule, en particulier d'un travailleur par rapport à un véhicule de construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2017/001712 WO2019116066A1 (fr) 2017-12-14 2017-12-14 Procédé et système permettant de déterminer l'orientation d'une personne par rapport à un véhicule, en particulier d'un travailleur par rapport à un véhicule de construction

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WO2019116066A1 true WO2019116066A1 (fr) 2019-06-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230114366A1 (en) * 2020-03-19 2023-04-13 Komatsu Ltd. Work machine periphery monitoring system, work machine, and work machine periphery monitoring method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000282516A (ja) 1999-03-29 2000-10-10 Hitachi Constr Mach Co Ltd 作業車両の警報装置
US20120025964A1 (en) * 2010-07-27 2012-02-02 Beggs Ryan P Methods and apparatus to detect and warn proximate entities of interest
WO2017094952A1 (fr) * 2015-12-02 2017-06-08 엘지전자 주식회사 Procédé d'alarme externe de véhicule, dispositif auxiliaire de conduite de véhicule pour réaliser celui-ci, et véhicule comprenant un dispositif auxiliaire de conduite de véhicule

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000282516A (ja) 1999-03-29 2000-10-10 Hitachi Constr Mach Co Ltd 作業車両の警報装置
US20120025964A1 (en) * 2010-07-27 2012-02-02 Beggs Ryan P Methods and apparatus to detect and warn proximate entities of interest
WO2017094952A1 (fr) * 2015-12-02 2017-06-08 엘지전자 주식회사 Procédé d'alarme externe de véhicule, dispositif auxiliaire de conduite de véhicule pour réaliser celui-ci, et véhicule comprenant un dispositif auxiliaire de conduite de véhicule

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230114366A1 (en) * 2020-03-19 2023-04-13 Komatsu Ltd. Work machine periphery monitoring system, work machine, and work machine periphery monitoring method

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