CN201199723Y - Dangerous goods road transportation safety monitoring system - Google Patents
Dangerous goods road transportation safety monitoring system Download PDFInfo
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- CN201199723Y CN201199723Y CNU2008200348518U CN200820034851U CN201199723Y CN 201199723 Y CN201199723 Y CN 201199723Y CN U2008200348518 U CNU2008200348518 U CN U2008200348518U CN 200820034851 U CN200820034851 U CN 200820034851U CN 201199723 Y CN201199723 Y CN 201199723Y
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Abstract
危险品道路运输安全监控系统，以CDMA为承载网络，设置车载终端和监控中心；其特征是车载终端包括主控CPU、存储器、信号采集模块、定位模块和通信模块；信号采集模块包括运输物品温度和湿度的信息采集传感器、车内图像的摄像头；定位模块为GPS；通信模块包括车载终端与监控中心通信的CDMA无线通信模块、车载终端与车身其它ECU通信的CAN模块，以及人机接口；定位信息通过接口由主控CPU读取，并通过无线通信模块向监控中心发送；摄像头图像信号输入在主控CPU中压缩编码，并通过无线通信模块向监控中心发送；监控中心由通讯接口、GIS应用以及电子地图构成，通讯接口在车辆与GIS应用之间的互通信息，电子地图由GIS应用调用。本实用新型可提高危险品道路运输的安全性。
Dangerous goods road transportation safety monitoring system, with CDMA as the bearer network, is equipped with vehicle-mounted terminals and monitoring centers; it is characterized in that the vehicle-mounted terminals include main control CPU, memory, signal acquisition module, positioning module and communication module; the signal acquisition module includes the temperature of transported goods and humidity information acquisition sensors, and cameras for in-vehicle images; the positioning module is GPS; the communication module includes a CDMA wireless communication module for the vehicle terminal to communicate with the monitoring center, a CAN module for the vehicle terminal to communicate with other ECUs of the vehicle body, and a man-machine interface; positioning The information is read by the main control CPU through the interface, and sent to the monitoring center through the wireless communication module; the image signal input of the camera is compressed and coded in the main control CPU, and sent to the monitoring center through the wireless communication module; the monitoring center is controlled by the communication interface, GIS application As well as the composition of the electronic map, the communication interface communicates information between the vehicle and the GIS application, and the electronic map is called by the GIS application. The utility model can improve the safety of road transportation of dangerous goods.
Description
Technical field
The utility model is a kind of road transport safety monitoring system that is mainly used in dangerous material such as transportation inflammable explosive article, poisonous substances, corrosives, radioactive substance.
Background technology
The economic sustained and rapid development of China has brought the flourishing as never before of road transport industry.Ministry of Communications's statistics shows that so far, the whole nation has more than 6800 families of road freight enterprise, 11.64 ten thousand of haulage vehicles, and the practitioner surpasses 210,000 people.Wherein, hazardous materials transportation accounts for year more than 30% of shipping total amount, and in rising trend, and the dangerous material more than 95% relate to the strange land transportation.Dangerous material are because the danger of self, in transit if traffic accident or leakage accident take place, not only car crash, and can cause serious disaster accidents such as burning, blast, burn into murder by poisoning, endanger public security and the people's the security of the lives and property, cause environmental pollution.Therefore society is increasing to the demand of dangerous material road transport supervisory control system, and performance requirement is more and more higher.
The mode manually on duty, the phone contact that the regulatory format of present domestic most of hazardous materials transportation vehicles remains comparatively traditional is carried out.And existing dangerous material road transport supervisory control system also comes with some shortcomings on the market, mainly comprises:
1, no real-time video information.Existing supervisory systems can't be in real time radios to the video information of vehicle collection Surveillance center or does not have the video acquisition transfer function, can't accomplish transfer point video monitoring etc.
2, bearer network is inconsistent.The bearer network of the transmission of video data and command communication system is inconsistent in the supervisory systems, needs in addition special construction network.
3, locating effect is poor.Existing supervisory systems can't promptly and accurately be located vehicle in the occasion of weak output signals such as underground parking.
4, development cost height is unwell to generally consumption.
The utility model content
The utility model is for avoiding above-mentioned existing in prior technology weak point, the low code check transmission technology of MJPEG video, data communication transmission and embedded technology are organically blended, with cdma network as communication medium, a kind of dangerous material road transport safety monitoring system is provided, in the hope of information such as the temperature of kinds of goods in the running route that shows the hazardous materials transportation vehicle by Surveillance center in real time, speed, position, the car, humidity, make things convenient for the supervisor that vehicle is monitored.
The utility model technical solution problem adopts following technical scheme:
The utility model is to be the bearer network that video transmission and commander's communication command transmit with the CDMA communication network, and car-mounted terminal and Surveillance center are set; Design feature of the present utility model is:
Described car-mounted terminal is made of master cpu, memory, power circuit, signal acquisition module, locating module and communication module; Described signal acquisition module comprises: be used to gather the temperature of the conveying objects in the hazardous materials transportation car, the transducer of humidity information and the camera of the interior image information of collection car; Described locating module adopts the GPS locating module; Described communication module comprises: is implemented in the cdma wireless communication module that communicates between car-mounted terminal and the Surveillance center, realizes the CAN module that other ECU of car-mounted terminal and vehicle body communicates by letter, and with keyboard or the LCD display human-machine interface module as people and car-mounted terminal interaction platform; The locating information of locating module is read by master cpu by interface, and sends to Surveillance center by wireless communication module; MJPEG software compressed encoding is carried out in picture signal input after the A/D conversion from camera in master cpu, and sends to Surveillance center by wireless communication module; Power supply comprises outside vehicle power and inner rechargeable battery, and described inner rechargeable battery is the charging source with the source of stable pressure of outside vehicle power;
Described Surveillance center is used by communication interface, GIS and electronic chart constitutes, communication interface exchanging information between vehicle and GIS application, and electronic chart is by the GIS application call.
Design feature of the present utility model also is:
Master cpu in the car-mounted terminal adopts the MCF52223 processor, and memory adopts AT25F1024; Signal acquisition module adopts CAMV31 camera and DS60 temperature sensor; The cdma wireless communication module adopts the FD810 module; Described GPS locating module, FD810 module and CPU communication interface are full serial ports, and all have antenna.
Described outside vehicle power is set to provide to system the voltage of 9V-50V, insert 5V voltage stabilizing circuit U1 through protective circuit Fusel and filter capacitor C3,5V voltage stabilizing output is also as the input voltage of 3.3V voltage stabilizing circuit VR1, the 5V voltage stabilizing of voltage stabilizing circuit U1 exports each external interface circuit to, 3.3V voltage stabilizing is exported as the main controller power supply, and offers the sensor signal detection protective circuit; Output at inner rechargeable battery is provided with counnter attack diode D4.
The interface that is arranged between transducer and CPU comprises switching value input and protective circuit, adopts chip ULQ2003D1, and each way switch amount signal input connects the 5V power supply by resistance again, and passes through capacity earth earlier through the reversal connection diode; Input to chip ULQ2003D1 input again, corresponding output connects the CPU pin, connects the 3.3V power supply by resistance simultaneously.
The interface that is arranged between transducer and CPU comprises analog signal detection and protective circuit, and each road analog signals input is connected to the A/D mouth of CPU earlier again through protective resistance.
The UIM card is set in described wireless communication module, and its power supply employing has the power module MIC5245 that enables control end and powers separately; UIMRESET and UIMCLK end are drop-down by resistance; UIM_DATA is by drawing on the resistance.
On described car-mounted terminal, be provided with and comprise utilizing camera interface, USB interface, I for a plurality of man-machine interfaces of user's use
2C interface and earphone interface.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
1, the utility model organically blends the low code check transmission technology of video, data communication transmission and embedded technology, with cdma network as communication medium, the information such as temperature, humidity that shows kinds of goods in the running route, speed, position, car of hazardous materials transportation vehicle by Surveillance center in real time, can effectively reduce accident rate, strengthen the accident emergency rescue ability, promote hazardous materials transportation supervision level.Can also follow the tracks of hazardous materials transportation garage bus or train route line simultaneously, realize effectively management.
2, master cpu of the present utility model has adopted the MCF52223 of Freescale company.
The MCF5222x family device is 32 8-digit microcontrollers of a integrated USB On-The-Go technology and Flash memory.USB On-The-Go technology makes two kinds of chips with usb communication function to communicate under the situation of host interface not having, and supports the equipment that has USB On-The-Go interface is arbitrarily carried out fast data access.This device provides peripheral hardware and developing instrument on the compatible sheet, make to become very easy from the upgrading of 8 machine to 32 machines, when promoting the expanded application ability also economization cost.
2, the transmission of video transmission and commander's communication command is carried by cdma network in the utility model system.System is a bearer network with CDMA 1X network, utilizes the MCF52223 chip development car-mounted terminal of Freescale company, has realized these technological difficulties of unified bearer network.
3, the utility model under the prerequisite that satisfies the Network Video Transmission requirement substantially, need not the additional hardware support by adopting MJPEG software codec scheme, has taken into account the requirement of low cost development.
4, the utility model GPS receiver adopts the intelligent satellite receiver module of HOLUX GR-85, communicates by letter with CPU by serial ports.HOLUX GR-85 is the intelligent satellite receiver module of high-effect a, low power consumption, is a complete satellite fix receiver, possesses comprehensive function, can satisfy the strict demand and the personal consumption demand of specialty location.
Description of drawings
Fig. 1 is the utility model system block diagram.
Fig. 2 is the utility model car-mounted terminal structural representation.
Fig. 3 is the utility model power supply the principle figure.
Fig. 4 is the utility model car-mounted terminal digital data acquisition circuit theory diagrams.
Fig. 5 is the utility model car-mounted terminal temperature sensor circuit schematic diagram.
Fig. 6 is the utility model car-mounted terminal camera circuit theory diagrams.
Fig. 7 is the utility model car-mounted terminal infrared emission and receiving circuit schematic diagram.
Fig. 8 is the utility model car-mounted terminal vehicle body CAN signal controlling and transmission circuit schematic diagram.
Fig. 9 is the utility model car-mounted terminal flash circuit theory diagrams.
Figure 10 is the utility model car-mounted terminal usb circuit schematic diagram.
Figure 11 is the utility model car-mounted terminal CDMA module for power supply circuit theory diagrams.
Figure 12 is the utility model car-mounted terminal UIM3.0V card operating voltage power supply circuits schematic diagrams.
Figure 13 is the utility model car-mounted terminal UIM card signal connecting circuit schematic diagram.
Figure 14 is the utility model car-mounted terminal microphone and earphone interface circuit schematic diagram.
Figure 15 is the utility model car-mounted terminal ringing circuit schematic diagram.
Embodiment
Referring to Fig. 1, native system is the bearer network that video transmission and commander's communication command transmit with the CDMA communication network, and car-mounted terminal and Surveillance center are set.Car-mounted terminal is got in touch by cdma mobile communication network and Surveillance center, sends hazardous materials transportation car real-time status information and receives Surveillance center's instruction to Surveillance center.
On car-mounted terminal, be provided with and comprise utilizing camera interface, USB interface, I2C interface and earphone interface for a plurality of man-machine interfaces of user's use.
Surveillance center is made of communication interface, GIS application and electronic chart, communication interface exchanging information between vehicle and GIS application, and electronic chart is by the GIS application call.Surveillance center also is in charge of operation by the special messenger.The various information that the user was concerned about can the image, on electronic chart, see quickly and easily; The user to the calling of car-mounted terminal and control command also can image, send quickly and easily.The various information of vehicle receive into and offer GIS and use by communication interface; The user can use by GIS and easily mobile unit be sent various instructions, also can adjust the setting of vehicle display message freely.Electronic chart has been stored the geography information in the certain limit, comprises road information, building information etc.Provide various different proportion chis, the electronic chart of different the level of detail information according to customer requirements.Communication interface can be received and sent messages between man-machine interface and server mutually, plays the effect of an information bridge.Guarantee information exchange between mobile unit and the Surveillance center at a high speed, stable carrying out.
Referring to Fig. 2, car-mounted terminal is made of master cpu, memory, power circuit, signal acquisition module and communication module, wherein:
Master cpu is responsible for each module is controlled to guarantee the operate as normal of system, and master cpu adopts the MCF52223 processor.
Memory adopts AT25F1024, the various data of depositing various drivings, operating system, application software and collecting.
Signal acquisition module comprises: be used to gather the conveying objects in the hazardous materials transportation car information such as temperature, humidity transducer and gather the camera of image information in the car, adopt CAMV31 camera and DS60 temperature sensor.
Communication module comprises and is implemented in the cdma wireless communication module that communicates between car-mounted terminal and the Surveillance center, realizes the CAN module that other ECU of car-mounted terminal and vehicle body communicates by letter, and with keyboard or the LCD display human-machine interface module as people and car-mounted terminal interaction platform; The cdma wireless communication module adopts FD810.
Locating module adopts the GPS locating module; The locating information of locating module is read by master cpu by interface, and sends to Surveillance center by wireless communication module; MJPEG software compressed encoding is carried out in picture signal input after the A/D conversion from camera in master cpu, and sends to Surveillance center by wireless communication module.
Wherein, GPS locating module, FD810 module and CPU communication interface are full serial ports, and all have antenna.
Power supply comprises outside vehicle power and inner rechargeable battery, and inner rechargeable battery is the charging source with the source of stable pressure of outside vehicle power;
Referring to Fig. 3, power supply comprises outside vehicle power power supply and the power supply of inner rechargeable battery, and inner rechargeable battery is the charging source with the source of stable pressure of outside vehicle power, and outside vehicle-mounted power supply circuits comprise protective circuit, 5V voltage stabilizing circuit and 3.3V voltage stabilizing circuit.
Shown in the figure: outside vehicle power provides the voltage of 9V-50V to main frame, through protective circuit Fusel and capacitor C 3, arrives the input of voltage stabilizing circuit U1.The infringement that when protective circuit can effectively suppress the drastic change of vehicle power signal main frame is caused; when input voltage and input current surpasses the ability to bear of main frame; Fusel cuts off the circuit of vehicle power and main frame, changes by the internal cell power supply, thereby effectively protects main frame not to be damaged.
5V voltage stabilizing circuit U1 (LM2576) becomes the outside vehicle-mounted voltage of unsettled 9V-50V into stable operable 5V voltage; what use 5V voltage mainly is external interface circuit; two-way USB interface, sensor signal detection protective circuit, SPI interface and UIM card control circuit are arranged; 5V voltage is also as the input voltage of 3.3V voltage stabilizing circuit VR1 (AIC1117A); 3.3V voltage is mainly used in main control MCU, the sensor signal detection protective circuit.
Inner rechargeable battery BT1 uses the rechargeable battery of 4 joint 1.2V, in order to prevent inner rechargeable battery to be caused damage because of charging current is excessive, in the charge circuit current-limiting resistance R2 should be set.
In order to guarantee the automatic switchover of two kinds of supply power modes, at the output of inner rechargeable battery counnter attack diode D4 is set, when outside vehicle power normal power supply, diode D4 ends, and inner rechargeable battery is not worked; When outside vehicle power can not be powered, inner rechargeable battery was directly devoted oneself to work.
Referring to Fig. 4, the interface that is arranged between transducer and CPU comprises that digital quantity signal detects and protective circuit, is made of U2 (ULQ2003D1), and each road analog signals input is connected to the A/D mouth of CPU earlier again through protective resistance.The input of double switch amount signal DI1, DI2 are arranged here.With DI1 is example, and diode D5 of first reversal connection meets 5V by resistance R 3 then, by capacitor C 11 ground connection, directly imports 1 pin of U2.Corresponding 16 pin that are output as connect CPU pin IRQ3, also meet 3.3V by resistance R 12 simultaneously.Wherein holding C6 is filter capacitor, can stablize input voltage; Resistance R 3, R12 are current-limiting resistance, and R12 guarantees that input current can not damage CPU, and R3 guarantees that input current can not damage U2 (ULQ2003D1).
Referring to Fig. 5, U6 is a temperature sensor, and 1 pin connects the power supply input, 2 pin ground connection, and 3 pin pass through R18 ground connection, and are connected to the analog signal control end AN6 of MCF52223.MCF52223 just can gather the temperature of article in the hazardous materials transportation car like this.When temperature surpasses certain limit, Surveillance center just can control vehicle by car-mounted terminal, can effectively avoid the generation of peril.
Referring to Fig. 6, P6 is a utilizing camera interface, and 4 pin and 6 pin are powered to camera, 5V voltage is sent into 4 pin and 6 pin through fuse, 3 pin and 5 pin ground connection, 7 pin, 8 pin and 1 pin, 2 pin are two pairs of signals, and receiving and transmitting signal is delivered to transmitting-receiving control pin URXD2, the UTXD2 of MCF52223 through the MAX488CSA chip.Camera can be used for taking the real-time status information of hazardous materials transportation car, and MCF52223 can obtain the pictorial information taked in real time, just can send Surveillance center to by cdma network.
Referring to Fig. 7, infrared transmitting tube has 2 pins, and wherein pin 1 is connected to 3.3V voltage by R58 resistance, and pin 2 is connected to the control pin IRQ5 of MCF52223 by a triode 2N3904 and R59 resistance.Infrared receiving tube has 3 pin, and one connects power supply, a ground connection, a control pin IRQ1 who is connected to MCF52223.Like this, by infrared reception with launch a cover system, just can carry out the setting of some parameters to car-mounted terminal, as article temperature alarming upper limit or the like in the car.
Referring to Fig. 8, U7 is MCP2510, is the CAN controller chip; U8 is MCP2551, is CAN transmitting-receiving control chip.CANH and CANL are a pair of differential signal on the vehicle body CAN bus, and what transmit on the signal is vehicle body information.Vehicle body information can be sent to CAN controller chip U7 by U8 like this, and the CAN controller just can send the vehicle body information that obtains to MCF52223 by the QSPI interface.
Referring to Fig. 9, U5 is AT25F1024, is the flash memory, and capacity is 1Mbit.This memory chip links to each other with MCF52223 by the QSPI interface.Camera collection to the hazardous materials transportation car in pictorial information can leave in this memory.Can effectively realize " black box " function like this, for accident treatment afterwards provides line of force rope.
Referring to Figure 10, be usb circuit.The USB interface operating voltage is 5V, and for guaranteeing USB interface safety, the centre has added a fuse F2.USB-DM and USB-DP are the following row bus and the last row bus of usb bus, also are to take the differential signal form, have strengthened antijamming capability.USB interface can be used for the user.
Referring to Figure 11, this partial circuit mainly provides CDMA module normal working voltage 3.8V.Because the CDMA module plays immeasurable effect in whole dangerous material road transport supervisory control system.So must guarantee that this module can operate as normal.Thereby the operating voltage 3.8V that must guarantee to offer module is normal.U10 is MIC39102, and VEXT-DC inputs to the U10 chip by 2 pin, and simultaneously 1 pin is the control end that enables of chip, joins with the control pin of MCF52223.4 pin connect these two resistance of R44, R45, can obtain 3.8V voltage accurately by the resistance of regulating these two resistance.3 pin output voltages connect C32, C33, C34 filter capacitor, and the voltage that obtains so just can offer the CDMA module.
Referring to Figure 12, U12 is MIC5245-3.0, and 1 pin is a voltage input end, meets VEXT-DC, 2 pin ground connection, and 3 pin link to each other with the UIM-PWR-EN of CDMA module for enabling control end, and 4 pin connect shunt capacitance, and 5 pin are output pin, output 3.0V voltage.The operating voltage of UIM card is 3.0V.
Referring to Figure 13, the UIM card is set in wireless communication module, its power supply employing has the power module MIC5245 that enables control end and powers separately; UIMRST and UIMCLK end are drop-down by resistance; UIMDATA is by drawing on the resistance.Shown in the figure, UIM deck pinout has 6: power supply, ground resets, clock, the input and output of data.Take place when the hazardous materials transportation car has emergency case, such as the travel route that has departed from regulation etc., at this moment Surveillance center just can call out the car owner by car-mounted terminal.
Referring to Figure 14, microphone and earphone portion all adopt differential signal, are respectively MIC1P1, MICINI and EAR1OP, EAR1ON, join with CDMA module counterpart.The car owner can converse by Mike and earphone interface and Surveillance center.Such as, run into emergency, can send emergency to Surveillance center.When Surveillance center gave an order to car-mounted terminal, the car owner also can make by car-mounted terminal and replying simultaneously.
Referring to Figure 15, ring is buzzer just in fact.The positive pole of buzzer is connected to 3.8V by R43 resistance, and the negative pole of buzzer is connected to the RINGER pin of CDMA module by three machine-operated 2N3904 and R46 resistance.When incoming call, the ring meeting rings, and can set out different the tinkle of bells by changing software program simultaneously, satisfies the different demand of user.
Claims (7)
1. dangerous material road transport safety monitoring system is the bearer network that video transmission and commander's communication command transmit with the CDMA communication network, and car-mounted terminal and Surveillance center are set; It is characterized in that:
Described car-mounted terminal is made of master cpu, memory, power circuit, signal acquisition module, locating module and communication module; Described signal acquisition module comprises: be used to gather the temperature of the conveying objects in the hazardous materials transportation car, the transducer of humidity information and the camera of the interior image information of collection car; Described locating module adopts the GPS locating module; Described communication module comprises: is implemented in the cdma wireless communication module that communicates between car-mounted terminal and the Surveillance center, realizes the CAN module that other ECU of car-mounted terminal and vehicle body communicates by letter, and with keyboard or the LCD display human-machine interface module as people and car-mounted terminal interaction platform; The locating information of locating module is read by master cpu by interface, and sends to Surveillance center by wireless communication module; MJPEG software compressed encoding is carried out in picture signal input after the A/D conversion from camera in master cpu, and sends to Surveillance center by wireless communication module; Power supply comprises outside vehicle power and inner rechargeable battery, and described inner rechargeable battery is the charging source with the source of stable pressure of outside vehicle power;
Described Surveillance center is used by communication interface, GIS and electronic chart constitutes, communication interface exchanging information between vehicle and GIS application, and electronic chart is by the GIS application call.
2. dangerous material road transport safety monitoring system according to claim 1 is characterized in that the master cpu in the car-mounted terminal adopts the MCF52223 processor, and memory adopts AT25F1024; Signal acquisition module adopts CAMV31 camera and DS60 temperature sensor; The cdma wireless communication module adopts the FD810 module; Described GPS locating module, FD810 module and CPU communication interface are full serial ports, and all have antenna.
3. dangerous material road transport safety monitoring system according to claim 1, it is characterized in that described outside vehicle power is set to provide to system the voltage of 9V-50V, insert 5V voltage stabilizing circuit U1 through protective circuit Fusel and filter capacitor C3,5V voltage stabilizing output is also as the input voltage of 3.3V voltage stabilizing circuit VR1, the 5V voltage stabilizing of voltage stabilizing circuit U1 exports each external interface circuit to, 3.3V voltage stabilizing is exported as the main controller power supply, and offers the sensor signal detection protective circuit; Output at inner rechargeable battery is provided with counnter attack diode D4.
4. dangerous material road transport safety monitoring system according to claim 1, the interface that it is characterized in that being arranged between transducer and CPU comprises switching value input and protective circuit, adopt chip ULQ2003D1, each way switch amount signal input is earlier through the reversal connection diode, connect the 5V power supply by resistance again, and pass through capacity earth; Input to chip ULQ2003D1 input again, corresponding output connects the CPU pin, connects the 3.3V power supply by resistance simultaneously.
5. dangerous material road transport safety monitoring system according to claim 1, the interface that it is characterized in that being arranged between transducer and CPU comprises analog signal detection and protective circuit, each road analog signals input is connected to the A/D mouth of CPU earlier again through protective resistance.
6. dangerous material road transport safety monitoring system according to claim 1 is characterized in that being provided with the UIM card in described wireless communication module, its power supply employing has the power module MIC5245 that enables control end and powers separately; UIMRESET and UIMCLK end are drop-down by resistance; UIM_DATA is by drawing on the resistance.
7. dangerous material road transport safety monitoring system according to claim 1 is characterized in that being provided with on described car-mounted terminal and can comprise utilizing camera interface, USB interface, I for a plurality of man-machine interfaces of user's use
2C interface and earphone interface.
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| CNU2008200348518U CN201199723Y (en) | 2008-04-25 | 2008-04-25 | Dangerous goods road transportation safety monitoring system |
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