CN106781399A - A low power consumption wireless meter reading relay unit - Google Patents

Abstract

The invention discloses a low-power-consumption wireless meter reading relay unit, which comprises a wireless module, a battery management module, a battery module and a processing module, wherein the wireless module is used for transmitting a wireless signal to a wireless network; the wireless module is respectively connected with the battery management module and the processing module; the battery management module is respectively connected with the wireless module, the battery module and the processing module; the battery module is respectively connected with the battery management module and the processing module. The wireless module has a sleep mode and a normal mode, can convert the sleep mode and the normal mode, and has the characteristics of low power consumption and long service life; the battery module is arranged in the relay unit, so that the power supply requirements of all modules in the relay unit can be met; the protective shell is arranged outside the relay unit, so that the relay unit can be installed outdoors and has a rainproof effect; the antenna is arranged outside to improve the capability of receiving and sending data, and the antenna has the characteristics of small volume and low cost.

Description

A low power consumption wireless meter reading relay unit

technical field

The invention belongs to the technical field of wireless meter reading, and relates to a low-power wireless meter reading relay unit.

Background technique

At present, in most areas of our country, user energy measurement management adopts the traditional management mode of manual meter reading and regular fee settlement. There are often problems such as water, electricity, gas charging difficulties, disputes, arrears, etc., which not only bring many problems to users. Trouble, also brings inconvenience to meter reading personnel. This manual meter reading method requires meter reading personnel to go door-to-door to read the data of the user's energy meter on a regular basis. The meter data, and the way of manual door-to-door meter reading is not conducive to data statistics and charging management. The traditional management mode of manual meter reading, billing, and reminders can only adapt to the situation of relatively small urban population.

In recent years, with the increase of urban population and high-rise buildings, the workload of manual meter reading will increase day by day, and the management costs will also gradually increase. It is no longer in line with the needs of modern property management. With the improvement of people's living standards and the development of community property management, people's requirements for home conditions are also constantly improving. For various residential communities, the concept of intelligent communities is proposed. The traditional manual meter reading method can no longer meet the development requirements of future housing, and the demand for time-sharing and section charging is gradually put on the agenda, so smart outdoor meter reading is very necessary. Moreover, with the development of electronic technology, sensing technology, automatic control technology, computer technology and communication technology, many products have been developed in the intelligent outdoor meter reading system, and the electronic, informational and networked management of user energy metering and charging has been realized. become possible. Automatic meter reading refers to the automatic reading and processing of meter data using technologies such as communication and computer networks. The development of automatic meter reading technology is the need to improve the level of property management, and it is also the necessity of the rapid development of network and computer technology. The use of automatic meter reading technology can not only save human resources, but more importantly, it can improve the accuracy of meter reading and reduce the cost due to estimation or The bill error caused by copying enables the energy management department to obtain the user's energy consumption information in a timely and accurate manner. At the same time, since the user no longer needs to make an appointment with the meter reader to read the meter, the user can quickly check the bill.

Compared with wired automatic meter reading technology, wireless meter reading technology has the characteristics of no wiring for construction, small workload, convenient system maintenance, simple troubleshooting, and the number of nodes can be increased or decreased at will according to system needs. Therefore, wireless meter reading technology will become the development mainstream.

According to the requirements of relevant national laws and regulations, the transmission power of wireless products using 433M and 470M frequency bands for wireless meter reading technology should not be too large. In addition, due to the constraints of the battery power supply characteristics of meter reading equipment, the communication distance of wireless meter reading equipment generally does not exceed 500m. Moreover, many meters are installed in the user's room, which makes the building affect the communication range. Therefore, the wireless meter reading technology is limited by the communication distance in practical applications, and the networking will be restricted.

When the relay mode is used for networking, the power supply and management of the repeater is also a headache for the user department. On the one hand, it is necessary to arrange a dedicated power supply for the repeater during construction, and it is also necessary to set up a special installation position, which requires a lot of investment. Relatively large; some meter reading systems use ordinary node meters as communication relay units, which increases the battery consumption of the node meters and cannot guarantee the service life of the meters.

Contents of the invention

The purpose of the present invention is to provide a low-power wireless meter reading relay unit, which controls the working mode of the wireless module through the processing module to realize the switching between the sleep mode and the mode mode of the wireless module, and the relay unit is installed in the protective Inside the casing, the whole device can be installed indoors or outdoors, which solves the problem of high power consumption of the relay unit and short service life of the battery.

The purpose of the present invention can be achieved through the following technical solutions:

A low-power wireless meter reading relay unit, including a wireless module, a battery management module, a battery module, and a processing module;

The wireless module is respectively connected with the battery management module and the processing module;

The battery management module is respectively connected with the wireless module, the battery module and the processing module;

The battery module is respectively connected with the battery management module and the processing module.

Further, an antenna is also included, and the antenna is connected to the wireless module through a waterproof joint.

Further, it also includes a protective module, the protective module is a protective shell, the protective shell is arranged outside the relay unit, the protective shell is made of ABS material, has waterproof function, and can be installed indoors or outdoors.

Further, the wireless module includes a sleep mode and a normal mode, the wireless module regularly monitors wireless signals in the sleep mode; the wireless module wirelessly forwards data in the normal mode.

Further, the wireless module monitors the wireless signal every 2 seconds. When the wireless module receives the wireless signal and the wireless signal is analyzed by the processing module as a valid data packet, the wireless module enters the normal mode from the sleep mode.

Further, when the wireless module does not forward data, after 30 seconds, the wireless module re-enters the dormant mode.

Beneficial effects of the present invention: the wireless module in the present invention has a sleep mode and a normal mode, and can switch between the sleep mode and the normal mode, and has the characteristics of low power consumption and long service life; by setting the battery module inside the relay unit , which can meet the power supply requirements of each module in the relay unit; by setting a protective shell outside the relay unit, the relay unit can be installed outdoors, which has the effect of rainproof; by setting an antenna outside, the efficiency of receiving and sending data is improved It has the characteristics of small size and low cost.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that are required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

FIG. 1 is a diagram of a low-power wireless meter reading relay unit of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Please refer to Fig. 1, the present invention is a low-power wireless meter reading relay unit, including a wireless module, a battery management module, a battery module, a processing module, a protection module, and an antenna;

The wireless module is respectively connected with the battery management module, the processing module and the antenna, and is used to convert the data signal into a wireless signal to realize the function of wireless communication;

The modes of the wireless module include sleep mode and normal mode. In the sleep mode, the wireless module enters the sleep state, and in the normal mode, the wireless module enters the wireless data forwarding state;

The battery management module is respectively connected with the wireless module, the battery module and the processing module, and is used to manage the power in the battery module and the working power of the wireless module;

The battery module is connected to the battery management module and the processing module respectively, and provides working power for the battery management module and the processing module;

The processing module is used to control the wireless module to realize switching control between the sleep mode and the normal mode of the wireless module.

After the system is powered on, the processing module detects whether the power in the battery meets the working power requirements of the battery management module and the processing module. After the detection is completed, the processing module sets the working state of the wireless module.

After the working state of the wireless module is set, the processing module sends a sleep control command to the wireless module, the wireless module enters the sleep mode, and the processing module also enters the sleep mode at the same time, thereby reducing the power consumption of the entire system.

The wireless module monitors the wireless signal every 2S in sleep mode, the wireless module sends the received wireless signal to the processing module, and the processing module analyzes the data packets sent by the wireless module, if the data analyzed by the processing module conforms to the content of the communication protocol, The processing module controls the wireless module to enter the normal mode from the sleep mode, and the processing module enters the wireless forwarding mode. The wireless forwarding mode delay is 30S, so as to quickly process the next data packet. The content in the agreement, or if the data forwarded by the wireless module is not received within 30S, the processing module controls the wireless module to enter the sleep mode again.

A protective module is provided outside the relay unit. The protective module adopts a protective shell. The material of the protective shell is ABS material, which is waterproof and can be installed outdoors. The antenna set outside the protective shell is connected to the wireless module through a waterproof connector. Since the antenna is placed outside, the receiving and sending capabilities of the antenna can be enhanced. During the installation process of the relay unit, select the appropriate installation position according to the actual environment, so as to achieve the best transmission effect.

In the sleep mode, the working current of the relay unit is reduced to tens of microamperes, and the normal working time of the relay unit is very short. According to the calculation of meter reading twice a day, the average working current is less than 1 milliampere. If you use 15000 milliamperes Powered by advanced lithium-ion battery, the working time of the battery can reach more than 2 years.

In the present invention, the wireless module has a sleep mode and a normal mode, and can switch between the sleep mode and the normal mode, and has the characteristics of low power consumption and long service life; by setting a battery module inside the relay unit, the relay unit can The power supply requirements of each module in the relay unit; by setting a protective shell outside the relay unit, the relay unit can be installed outdoors, which has the effect of rainproof; by setting the antenna outside to improve the ability to receive and send data, it has small size, The characteristics of low cost.

The above content is only an example and description of the concept of the present invention. Those skilled in the art make various modifications or supplements to the described specific embodiments or replace them in similar ways, as long as they do not deviate from the concept of the invention Or beyond the scope defined in the claims, all should belong to the protection scope of the present invention.

Claims (6)

1. A low-power consumption wireless meter reading relay unit is characterized in that: it comprises a wireless module, a battery management module, a battery module, and a processing module; The wireless module is respectively connected with the battery management module and the processing module; The battery management module is respectively connected with the wireless module, the battery module and the processing module; The battery module is respectively connected with the battery management module and the processing module. 2 . The low-power wireless meter reading relay unit according to claim 1 , further comprising an antenna, and the antenna is connected to the wireless module through a waterproof joint. 3 . 3. A kind of low power consumption wireless meter reading relay unit according to claim 1, it is characterized in that: also comprise protection module, described protection module is a protection casing, and described protection casing is arranged on the outside of relay unit, The protective casing is made of ABS material, has waterproof effect, and can be installed indoors or outdoors. 4. A kind of low power consumption wireless meter reading relay unit according to claim 1, is characterized in that: described wireless module comprises dormant mode and normal mode, and described wireless module regularly monitors wireless signal under dormant mode; The wireless module wirelessly forwards the data in the normal mode. 5. A kind of low power consumption wireless meter reading relay unit according to claim 1, characterized in that: said wireless module monitors a wireless signal every 2S, when the wireless module receives the wireless signal, the wireless signal is analyzed by the processing module When it is a valid data packet, the wireless module enters the normal mode from the sleep mode. 6. A low-power wireless meter reading relay unit according to claim 1, characterized in that: when the wireless module does not transmit data, the wireless module re-enters sleep mode after 30 seconds.