CN108226680A - A kind of arrester test system based on ZigBee technology - Google Patents

Abstract

The invention belongs to wireless communication technical field of measurement and test more particularly to a kind of arrester based on ZigBee technology to test system.Including temperature sampler, leakage current collection device, testing base station, gateway device and monitor workstation；Wherein, temperature sampler, leakage current collection device are connected by radio connection with testing base station, and testing base station is connected by bus cable with gateway device, and gateway device is connected by Ethernet with monitor workstation；Temperature sampler, leakage current collection device are realized by radio connection and testing base station and connected.The present invention solves the problems, such as the high voltage running environment of arrester to temperature and leakage current collection, the docking of high voltage environment test is completed by wireless temperature acquisition machine and wireless leakage current collection device and existing network technology, realize the real time on-line monitoring of high-voltage arrester internal temperature and leakage current, this system is safe and reliable, has broad application prospects.

Description

A lightning arrester test system based on ZigBee technology

technical field

The invention belongs to the technical field of wireless communication testing, in particular to a lightning arrester testing system based on ZigBee technology.

Background technique

With the rapid development of my country's economy, people's demand for electricity is increasing. The arrester is an important equipment in the power plant. During the long-term operation, due to overvoltage, aging, lightning strikes and other reasons, the leakage current of the valve inside the arrester will be caused. Increase and excessive heat generation may cause power outages, fires, explosions and other accidents if not handled in time, and the high voltage and strong magnetic field environment will also cause certain damage to the health of monitoring personnel who work in this environment for a long time.

Contents of the invention

Aiming at the problems existing in the above-mentioned prior art, the present invention provides a lightning arrester testing system based on ZigBee technology. Its purpose is to provide a test system with reasonable structure, which can solve the technical problems of temperature and leakage current collection in the high-voltage operating environment of the arrester.

In order to achieve the above-mentioned purpose of the invention, the present invention is achieved through the following technical solutions:

A lightning arrester test system based on ZigBee technology, including a temperature collector, a leakage current collector, a test base station, a gateway device, and a monitoring workstation; wherein, the temperature collector and the leakage current collector are connected to the test base station through a wireless connection, The wireless communication technology adopted is ZigBee technology, which is the Zigbee protocol. ZigBee technology is implemented on the basis of ZigBee chips in hardware; the test base station is connected to the gateway device through the bus cable, and the gateway device is connected to the monitoring workstation through Ethernet; the test base station The ZigBee chip that adopts is used for the temperature information of each position that obtains from a plurality of temperature collectors and the leakage current information that leakage current collector gathers and sends to gateway equipment; Described temperature collector, leakage current collector all Connect with the test base station through wireless connection.

Described temperature collector comprises temperature sensor, temperature collector CPU, temperature collector ZigBee chip and temperature collector power supply; Wherein temperature sensor, temperature collector ZigBee chip are all connected with temperature collector CPU, temperature sensor, temperature collector CPU And the ZigBee chip of the temperature collector is connected with the power supply of the temperature collector at the same time.

Described leakage current collector comprises leakage current sensor, leakage current collector CPU, leakage current collector ZigBee chip and leakage current collector power supply, wherein leakage current sensor, leakage current collector ZigBee chip are all connected with leakage current collector CPU ; The leakage current sensor, the leakage current collector CPU and the leakage current collector ZigBee chip are all connected to the leakage current collector power supply at the same time.

Described test base station comprises base station ZigBee communication chip, base station CPU, base station liquid crystal display and base station power supply; Wherein, base station ZigBee communication chip, base station liquid crystal display are all connected with base station CPU; Base station ZigBee communication chip, base station liquid crystal display, base station CPU all simultaneously Connect to base station power.

The ZigBee chip is provided with ID address information, which is used to determine the position information of the tested point; the test base station adopts the 485 bus to communicate with the gateway equipment, and wherein the 485 bus adopts the industrial control MODBUS protocol to communicate at the software protocol layer to ensure the communication data the quality of.

The ZigBee chip has two working modes, one is a ZigBee chip controlled by a microprocessor; the other is an independent ZigBee module with an independent function.

The temperature sensor in the temperature collector directly contacts the valve plate of the lightning arrester under test; the temperature sensor transmits the collected temperature information to the CPU of the temperature collector through the circuit, and after the analysis of the CPU of the temperature collector, the data is transferred to the temperature controller through the circuit. The ZigBee chip of the collector and the ZigBee chip of the temperature collector transmit it wirelessly. The wireless communication technology adopted is ZigBee technology, which is realized based on the ZigBee chip in hardware; the frequency of this technology is 2.4Ghz; Since ZigBee technology has the function of automatic networking, as long as the data can be received, all devices can automatically form a network.

The leakage current collector and the valve plate of the arrester under test are connected in series, the leakage current information collected by the leakage current sensor is transmitted to the CPU of the leakage current collector through the circuit, and after the analysis of the leakage current collector CPU, the data is transmitted through the circuit Give the ZigBee chip of the leakage current collector, and the ZigBee chip of the leakage current collector transmits it wirelessly. The wireless communication technology adopted is ZigBee technology, and the ZigBee technology is realized based on the ZigBee chip on the hardware; Ghz frequency; at the same time, because ZigBee technology has the function of automatic networking, as long as it is within the range of data reception, all devices can automatically form a network.

The base station ZigBee communication chip of the test base station receives the temperature data from the temperature collector and the leakage current data of the leakage current collector, thereby realizing the collection of isolated temperature data and leakage current in a high-voltage environment, and testing the inside of the base station The ZigBee communication chip of the base station transmits the received data to the base station CPU, and the base station CPU compares the received temperature and leakage current data with the preset temperature and leakage current thresholds. If the temperature or leakage current is normal, it will be displayed on the base station LCD If the alarm value exceeds the set temperature or leakage current, it will automatically alarm. The test base station will transmit the received temperature data and leakage current data to the gateway device through the 485 bus, and the gateway device will transmit it to the monitoring workstation through Ethernet. At the same time, the gateway device will It is also responsible for receiving control commands sent back from the monitoring workstation in real time, so as to realize remote monitoring; the monitoring workstation is equipped with a management system, which can display the monitored temperature and leakage current changes in the form of graphs. The management system also has temperature and The storage and management function of leakage current data can query historical data according to the time period set by the user, the address or number of the temperature collector or leakage current collector; when the temperature exceeds the set value, an alarm message will be sent to remind the staff to check the arrester Whether there is a fault; you can also publish the temperature curve or leakage current curve and its recorded information through the webpage through the management system on the monitoring workstation, which is convenient for remote users to view and use. The monitoring personnel can remotely monitor each temperature collector or The leakage current collector sets the alarm value, defines different levels of alarm methods, and installs the client on different staff computers as required.

The circuit of the leakage current collector includes a leakage current sampling circuit module, a leakage current acquisition CPU module, a leakage current communication ZigBee module, a leakage current acquisition reference source module and a leakage current acquisition power supply module; wherein, the leakage current sampling circuit module consists of two-way Voltage regulator tubes DWa, DWb and sampling resistor Rb are composed of one end connected to the signal input and at the same time connected to the P1.0 pin of the leakage current acquisition CPU module, and the other end connected to the signal output and simultaneously connected to the P1.6 pin of the leakage current acquisition CPU module The leakage current acquisition CPU module converts the acquired leakage current signal into a voltage signal, and connects the CPU to the leakage current acquisition CPU module for sampling; the leakage current acquisition reference source module consists of a reference source chip TL431 and a 2.5V fixed Signal source, one end is connected to the positive pole of capacitor C, the other end is connected to the system power ground, and at the same time, it is connected to the P1.6 pin of the leakage current acquisition CPU module to provide a stable 2.5V signal source for the leakage current acquisition CPU module; the leakage current acquisition CPU module After the collected signal is converted from analog to digital by the internal AD module, the test result is sent by the leakage current communication ZigBee module. Among them, the P3.6 pin of the leakage current collection CPU module is connected to the TXD pin of ZigBee, and the leakage current The P3.7 pin of the CPU module is connected to the RXD pin of ZigBee; the positive pole of the leakage current collection power supply module is connected to the VCC pin of each chip, and the negative pole of the leakage current collection power supply module is connected to the GND pin of each chip;

The circuit of the temperature collector includes a temperature sampling circuit module, a temperature acquisition CPU module, a temperature acquisition communication ZigBee module and a temperature acquisition power supply module; wherein, the temperature sampling circuit module is composed of an integrated digital temperature acquisition chip DS18B20, and its VCC pin Connect to the positive pole of the temperature acquisition power supply module, GND pin to the negative pole of the temperature acquisition power supply module, DQ to the P5.4 pin of the temperature acquisition CPU module; The ZigBee module sends, wherein, the P3.6 pin of the temperature acquisition CPU module is connected to the TXD pin of the temperature acquisition communication ZigBee module, and the P3.7 pin of the temperature acquisition CPU module is connected to the RXD pin of the temperature acquisition communication ZigBee module; The positive pole of the temperature acquisition power supply module is connected to the VCC pin of each chip, and the negative pole of the temperature acquisition power supply module is connected to the GND pin of each chip;

The test base station circuit includes a base station liquid crystal display module, a base station power supply module, a base station CPU module and a base station communication Zigbee module; wherein, the base station liquid crystal display module can display the test results sent by the temperature collector and the leakage current collector, and its VCC The pin and A pin are connected to the positive pole of the base station power supply module, and the GND, Vo, RW, and K pins of the base station liquid crystal display module are connected to the negative pole of the base station power supply module at the same time, and its DATA0 to DATA7 pins are connected to P1.0 to P1.0 of the base station CPU module. P1.7 one-to-one connection; the base station communication Zigbee module is used to accept the test results sent by the temperature collector and leakage current collector, among them, the P3.6 pin of the base station CPU module is connected to the TXD pin of the base station communication Zigbee module The P3.7 pin of the base station CPU module is connected to the RXD pin of the base station communication Zigbee module; the positive pole of the base station power supply module is connected to the VCC pin of each chip, and the negative pole of the base station power supply module is connected to the GND pin of each chip .

Compared with prior art, advantage and beneficial effect of the present invention are:

A lightning arrester testing system based on ZigBee technology described in the present invention transmits the temperature and leakage current data of the internal valve plate of the lightning arrester through the ZigBee network, and solves the problem of collecting temperature and leakage current in the high-voltage operating environment of the lightning arrester. The temperature collector, the wireless leakage current collector and the existing network technology have completed the docking of the high-voltage environment test, and realized the real-time online monitoring of the internal temperature and leakage current of the high-voltage arrester. This system is safe, reliable, and has broad application prospects.

The present invention will be further described and illustrated below in conjunction with the accompanying drawings and specific embodiments, but is not limited by the embodiments.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the structural block diagram of temperature collector among the present invention;

Fig. 3 is the structural block diagram of leakage current collector among the present invention;

Fig. 4 is a structural block diagram of the test base station in the present invention.

Fig. 5 is the circuit diagram of leakage current collector among the present invention;

Fig. 6 is the circuit diagram of temperature collector among the present invention;

Fig. 7 is a circuit diagram of the test base station in the present invention.

In the figure: temperature collector 1, leakage current collector 2, test base station 3, gateway device 4, monitoring workstation 5, temperature sensor 6, temperature collector CPU7, temperature collector ZigBee chip 8, temperature collector power supply 9, leakage current Sensor 10, leakage current collector CPU11, leakage current collector ZigBee chip 12, leakage current collector power supply 13, base station ZigBee communication chip 14, base station CPU15, base station liquid crystal display 16, base station power supply 17, leakage current sampling circuit module 18, leakage Current acquisition CPU module 19, leakage current communication ZigBee module 20, leakage current acquisition reference source module 21, leakage current acquisition power supply module 22, temperature sampling circuit module 23, temperature acquisition power supply module 24, temperature acquisition CPU module 25, temperature acquisition communication ZigBee Module 26, base station liquid crystal display module 27, base station power supply module 28, base station CPU module 29, base station communication Zigbee module 30.

Detailed ways

The present invention is a lightning arrester testing system based on ZigBee technology, as shown in Figure 1, which is a schematic diagram of the overall structure of the present invention. It includes a temperature collector 1 , a leakage current collector 2 , a test base station 3 , a gateway device 4 and a monitoring workstation 5 . Among them, the temperature collector 1 and the leakage current collector 2 are all connected to the test base station 3 through a wireless connection mode. The wireless communication technology adopted is ZigBee technology, and the test base station 3 is connected to the gateway device 4 through a bus cable. The device 4 is connected with the monitoring workstation 5 through Ethernet. The ZigBee chip used by the test base station 3 is used to centrally process and send the temperature information of each location acquired from multiple temperature collectors 1 and the leakage current information collected by the leakage current collector 2 to the gateway device 4 . At the same time, all ZigBee chips are provided with corresponding ID address information, which is used to determine the position information of the tested point. The test base station 3 uses the 485 bus to communicate with the gateway device 4, and the 485 bus uses the industrial control MODBUS protocol to communicate at the software protocol layer to ensure the quality of communication data.

The existing ZigBee wireless communication technology is the Zigbee protocol, which is a short-distance, low-power wireless communication technology based on the IEEE802.15.4 standard low-power LAN protocol. ZigBee technology is based on ZigBee chip, which has two working modes, one is the ZigBee chip controlled by microprocessor; the other is the independent ZigBee module that has been developed and has independent functions. The lightning arrester testing system based on ZigBee technology of the present invention is applied to the direction system monitoring of high-voltage electrical appliances, which puts forward higher requirements for the safety and stability of the system, so the first mode is selected. The ZigBee chip controlled by the microprocessor can be set pertinently according to the particularity of the use environment, which is beneficial to the function of the system.

As shown in FIG. 2 , FIG. 2 is a structural block diagram of the temperature collector 1 . The temperature collector 1 includes a temperature sensor 6 , a temperature collector CPU7 , a temperature collector ZigBee chip 8 and a temperature collector power supply 9 . Wherein temperature sensor 6, temperature collector ZigBee chip 8 are all connected with temperature collector CPU7; Temperature sensor 6, temperature collector CPU7 and temperature collector ZigBee chip 8 are all connected with temperature collector power supply 9 simultaneously.

The temperature sensor 6 in the temperature collector 1 directly contacts the valve plate of the arrester under test, so as to collect the temperature more accurately. Temperature sensor 6 transmits the temperature information collected to temperature collector CPU7 by circuit, after the analysis of temperature collector CPU7, data is passed to temperature collector ZigBee chip 8 through circuit, and temperature collector ZigBee chip 8 wirelessly transmits When it is launched, ZigBee technology uses a frequency of 2.4Ghz. At the same time, because ZigBee technology has the function of automatic networking, as long as the data can be received, all ZigBee devices can automatically form a network.

As shown in FIG. 3 , FIG. 3 is a structural block diagram of the leakage current collector 2 . The leakage current collector 2 includes a leakage current sensor 10 , a leakage current collector CPU 11 , a leakage current collector ZigBee chip 12 and a leakage current collector power supply 13 . Wherein leakage current sensor 10, leakage current collector ZigBee chip 12 are all connected with leakage current collector CPU11; Leakage current sensor 10, leakage current collector CPU11 and leakage current collector ZigBee chip 12 are all connected with leakage current collector power supply 13 simultaneously connected.

The leakage current collector 2 is connected in series with the valve plate of the arrester under test to improve the accuracy of the current under test. The leakage current sensor 10 will collect the leakage current information and transmit it to the leakage current collector CPU11 through the circuit. After the analysis of the leakage current collector CPU11, the data will be transmitted to the leakage current collector ZigBee chip 12 through the circuit. The leakage current collector ZigBee chip 12 It is transmitted wirelessly, and ZigBee technology uses a frequency of 2.4Ghz. At the same time, because ZigBee technology has the function of automatic networking, as long as the data can be received, all ZigBee devices can automatically form a network.

As shown in FIG. 4 , FIG. 4 is a structural block diagram of the test base station 3 . The test base station 3 includes a base station ZigBee communication chip 14 , a base station CPU 15 , a base station liquid crystal display 16 and a base station power supply 17 . Base station ZigBee communication chip 14, base station liquid crystal display 16 are all connected with base station CPU15; The base station ZigBee communication chip 14 of the test base station 3 receives the temperature data from the temperature collector 1 and the leakage current data from the leakage current collector 2, thereby realizing the isolated temperature data and leakage current collection in a high-voltage environment, and testing The base station ZigBee communication chip 14 inside the base station 3 transmits the received data to the base station CPU15, and the base station CPU15 compares the received temperature and leakage current data with the preset temperature and leakage current thresholds, and if the temperature or leakage current is normal, pass The liquid crystal display 16 of the base station shows that if the alarm value exceeds the set temperature or leakage current, it will automatically alarm, and the test base station will transmit the received temperature data and leakage current data to the gateway device 4 through the 485 bus at the same time, and the gateway device 4 will transmit it through Ethernet to the monitoring workstation 5, and the gateway device 4 is also responsible for receiving the control commands sent back from the monitoring workstation 5 in real time, so as to realize remote monitoring. A management system is installed on the monitoring workstation, which can display the monitored temperature and leakage current changes in the form of graphs. The management system also has the storage and management functions of temperature and leakage current data, which can be set according to the time period and temperature set by the user. Collector or leakage current collector address or number to query historical data. When the temperature exceeds the set value, an alarm message will be sent to remind the staff to check whether the arrester is faulty. It is also possible to publish the temperature curve or leakage current curve and its recorded information through the webpage through the management system on the monitoring workstation, which is convenient for remote users to view and use. The monitoring personnel can also remotely monitor each temperature collector or leakage current. The alarm value can be set by the controller, different levels of alarm methods can be defined, and the client can be installed on different staff computers according to the needs, which makes the management more convenient and faster.

As shown in FIG. 5, FIG. 5 is a circuit diagram of a leakage current collector. The circuit diagram of the leakage current collector 2 is composed of a leakage current sampling circuit module 18, a leakage current acquisition CPU module 19, a leakage current communication ZigBee module 20, a leakage current acquisition reference source module 21, and a leakage current acquisition power supply module 22. Wherein, leakage current sampling circuit module 18 is made up of bidirectional voltage regulator tube DWa, DWb and sampling resistance Rb, and one end is connected with signal input, is connected with the P1.0 pin of leakage current acquisition CPU module 19 simultaneously, and the other end is connected with signal output, simultaneously Connect to the P1.6 pin of the leakage current acquisition CPU module 19. The leakage current collection CPU module 19 converts the collected leakage current signal into a voltage signal, and connects the CPU to the leakage current collection CPU module 19 for sampling. Leakage current acquisition reference source module 21 is composed of reference source chips TL431 and Ra to form a 2.5V fixed signal source, one end is connected to the positive pole of capacitor C, the other end is connected to system power ground, and at the same time, it is connected to the P1.6 pin of leakage current acquisition CPU module 19, To provide a stable 2.5V signal source for the leakage current acquisition CPU module 19 . Leakage current collects CPU module 19 after the signal after the collection is carried out analog-to-digital conversion through internal AD module, and test result is sent by leakage current communication ZigBee module 20, wherein, the P3.6 pin of leakage current collection CPU module 19 and ZigBee's The TXD pins are connected, and the P3.7 pin of the leakage current collecting CPU module 19 is connected with the RXD pin of ZigBee. The positive poles of the leakage current collection power supply module 22 are respectively connected to the VCC pins of each chip, and the negative poles of the leakage current collection power supply module 22 are respectively connected to the GND pins of each chip.

As shown in Figure 6, the circuit diagram of the temperature collector in Figure 6. The circuit diagram of the temperature collector 2 is composed of a temperature sampling circuit module 23, a temperature acquisition CPU module 25, a temperature acquisition communication ZigBee module 26, and a temperature acquisition power supply module 24. Wherein, the temperature sampling circuit module 23 is composed of an integrated digital temperature acquisition chip DS18B20, its VCC pin is connected to the positive pole of the temperature acquisition power supply module 24, the GND pin is connected to the negative pole of the temperature acquisition power supply module 24, and DQ is connected to the temperature acquisition CPU module 25 the P5.4 pin. Temperature acquisition CPU module 25 will collect the temperature signal, test result is sent by temperature acquisition communication ZigBee module 26, wherein, the P3.6 pin of temperature acquisition CPU module 25 is connected with the TXD pin of temperature acquisition communication ZigBee module 26, temperature The P3.7 pin of the acquisition CPU module 25 is connected with the RXD pin of the temperature acquisition communication ZigBee module 26 . The positive poles of the temperature acquisition power supply module 24 are respectively connected to the VCC pins of each chip, and the negative poles of the temperature acquisition power supply module 24 are respectively connected to the GND pins of each chip.

As shown in Figure 7, Fig. 7 is the circuit diagram of test base station, the circuit diagram of described test base station 3 is made of base station liquid crystal display module 27, base station power supply module 28, base station CPU module 29, base station communication Zigbee module 30. Wherein, the base station liquid crystal display module 27 can display the test result sent by the temperature collector 1 and the leakage current collector 2, and its VCC pin and A pin are connected to the positive pole of the base station power supply module 28, and the base station liquid crystal display module 27 has its GND, Vo, RW, and K pins are connected to the negative pole of the base station power supply module 28 at the same time, and its DATA0 to DATA7 pins are connected to P1.0 to P1.7 of the base station CPU module 29 in one-to-one correspondence. The base station communication Zigbee module 30 is in order to accept the result of the test that the temperature collector 1 and the leakage current collector 2 send, wherein, the P3.6 pin of the base station CPU module 29 is connected with the TXD pin of the base station communication Zigbee module 30, and the base station The P3.7 pin of the CPU module 29 is connected with the RXD pin of the base station communication Zigbee module 30 . The anodes of the base station power supply module 28 are respectively connected to the VCC pins of each chip, and the negative electrodes of the base station power supply module 28 are respectively connected to the GND pins of each chip.

Claims (10)

1. A lightning arrester test system based on ZigBee technology is characterized in that: comprise temperature collector, leakage current collector, test base station, gateway equipment and monitoring workstation; Wherein, temperature collector, leakage current collector all pass wireless connection mode It is connected with the test base station, and the wireless communication technology adopted is ZigBee technology, which is the Zigbee protocol. ZigBee technology is implemented on the basis of ZigBee chip in hardware; the test base station is connected with the gateway device through the bus cable, and the gateway device is connected with the monitoring workstation through Ethernet connected; the ZigBee chip used by the test base station is used to centrally process the temperature information of each position obtained from multiple temperature collectors and the leakage current information collected by the leakage current collector to the gateway device; the temperature collector , Leakage current collectors are connected with the test base station through wireless connection. 2. a kind of arrester test system based on ZigBee technology according to claim 1, is characterized in that: described temperature collector comprises temperature sensor, temperature collector CPU, temperature collector ZigBee chip and temperature collector power supply; Wherein temperature The sensor and the temperature collector ZigBee chip are all connected to the temperature collector CPU, and the temperature sensor, the temperature collector CPU and the temperature collector ZigBee chip are all connected to the temperature collector power supply at the same time. 3. a kind of arrester test system based on ZigBee technology according to claim 1, is characterized in that: described leakage current collector comprises leakage current sensor, leakage current collector CPU, leakage current collector ZigBee chip and leakage current acquisition The leakage current sensor, the leakage current collector ZigBee chip are all connected to the leakage current collector CPU; the leakage current sensor, the leakage current collector CPU and the leakage current collector ZigBee chip are all connected to the leakage current collector power supply at the same time . 4. a kind of arrester test system based on ZigBee technology according to claim 1, is characterized in that: described test base station comprises base station ZigBee communication chip, base station CPU, base station liquid crystal display and base station power supply; Wherein, base station ZigBee communication chip, The base station LCD display is connected to the base station CPU; the base station ZigBee communication chip, base station LCD display, and base station CPU are all connected to the base station power supply at the same time. 5. a kind of lightning arrester test system based on ZigBee technology according to claim 1 is characterized in that: ID address information is provided with in the described ZigBee chip, is used for determining the positional information of tested point position; Test base station adopts 485 bus lines Communicate with the gateway device, among which the 485 bus uses the industrial control MODBUS protocol to communicate at the software protocol layer to ensure the quality of communication data. 6. a kind of lightning arrester test system based on ZigBee technology according to claim 1 is characterized in that: described ZigBee chip has two kinds of operating modes, and a kind of is the ZigBee chip that adopts microprocessor to control; Stand-alone ZigBee module with stand-alone use function. 7. a kind of arrester test system based on ZigBee technology according to claim 1 is characterized in that: the temperature sensor in the described temperature collector directly contacts the valve plate of the arrester under test; the temperature information collected by the temperature sensor passes through the circuit After being analyzed by the temperature collector CPU, the data is transmitted to the temperature collector ZigBee chip through the circuit, and the temperature collector ZigBee chip transmits it wirelessly, and the wireless communication technology used is ZigBee technology , ZigBee technology is implemented on the basis of ZigBee chips in hardware; this technology uses a frequency of 2.4Ghz; at the same time, because ZigBee technology has the function of automatic networking, as long as the data can be received, all devices can be automatically connected to each other. networking. 8. A kind of lightning arrester testing system based on ZigBee technology according to claim 1, it is characterized in that: described leakage current collector and tested lightning arrester valve plate are connected in series, and leakage current sensing will collect leakage current information through circuit After being analyzed by the CPU of the leakage current collector, the data is transmitted to the ZigBee chip of the leakage current collector through the circuit, and the ZigBee chip of the leakage current collector transmits it wirelessly. The wireless communication adopted The technology is ZigBee technology, and ZigBee technology is implemented on the basis of ZigBee chips in hardware; the ZigBee technology uses a frequency of 2.4Ghz; at the same time, because ZigBee technology has the function of automatic networking, as long as it is within the range of data reception, all devices All can automatically form a network. 9. a kind of arrester test system based on ZigBee technology according to claim 1 is characterized in that: the base station ZigBee communication chip of described test base station receives the leakage current data from the temperature data of temperature collector and leakage current collector In this way, the isolated temperature data and leakage current collection are realized in a high-voltage environment. The base station ZigBee communication chip inside the test base station transmits the received data to the base station CPU, and the base station CPU compares the received temperature and leakage current data with the The pre-set temperature and leakage current threshold are compared. If the temperature or leakage current is normal, it will be displayed on the LCD of the base station. If the alarm value exceeds the set temperature or leakage current, it will automatically alarm. The data is transmitted to the gateway device through the 485 bus, and the gateway device transmits it to the monitoring workstation through Ethernet. At the same time, the gateway device is also responsible for receiving the control commands sent back from the monitoring workstation in real time, so as to realize remote monitoring; the monitoring workstation is installed with a management system. The monitored temperature and leakage current changes can be displayed in the form of graphs. The management system also has the storage and management functions of temperature and leakage current data. or number to query historical data; when the temperature exceeds the set value, an alarm message will be sent to remind the staff to check whether the arrester is faulty; the temperature curve or leakage current curve and its recorded information can also be passed through the management system on the monitoring workstation. Publish the webpage, which is convenient for remote users to view and use. The monitoring personnel can remotely set the alarm value of each temperature collector or leakage current collector, define different levels of alarm methods, and install them on different staff computers according to needs. client. 10. a kind of arrester test system based on ZigBee technology according to claim 1, is characterized in that: the circuit of described leakage current collector comprises leakage current sampling circuit module, leakage current acquisition CPU module, leakage current communication ZigBee module, The leakage current acquisition reference source module and the leakage current acquisition power supply module are composed; among them, the leakage current sampling circuit module is composed of bidirectional voltage regulator tubes DWa, DWb and sampling resistor Rb, one end is connected to the signal input, and at the same time, it is connected to P1 of the leakage current acquisition CPU module .0 pin, the other end is connected to the signal output, and at the same time connected to the P1.6 pin of the leakage current acquisition CPU module; the leakage current acquisition CPU module converts the collected leakage current signal into a voltage signal, and connects the CPU to the leakage current acquisition The CPU module performs sampling; the leakage current acquisition reference source module is composed of the reference source chip TL431 and Ra to form a 2.5V fixed signal source, one end is connected to the positive pole of the capacitor C, the other end is connected to the system power ground, and at the same time it is connected to the P1.6 of the leakage current acquisition CPU module Pin to provide a stable 2.5V signal source for the leakage current acquisition CPU module; the leakage current acquisition CPU module converts the collected signal through the internal AD module for analog-to-digital conversion, and the test result is sent by the leakage current communication ZigBee module, where , the P3.6 pin of the leakage current acquisition CPU module is connected to the TXD pin of ZigBee, and the P3.7 pin of the leakage current acquisition CPU module is connected to the RXD pin of ZigBee; the positive pole of the leakage current acquisition power supply module is respectively connected to each chip The VCC pins of the leakage current acquisition power supply module are connected to the GND pins of each chip respectively; The circuit of the temperature collector includes a temperature sampling circuit module, a temperature acquisition CPU module, a temperature acquisition communication ZigBee module and a temperature acquisition power supply module; wherein, the temperature sampling circuit module is composed of an integrated digital temperature acquisition chip DS18B20, and its VCC pin Connect to the positive pole of the temperature acquisition power supply module, GND pin to the negative pole of the temperature acquisition power supply module, DQ to the P5.4 pin of the temperature acquisition CPU module; The ZigBee module sends, wherein, the P3.6 pin of the temperature acquisition CPU module is connected to the TXD pin of the temperature acquisition communication ZigBee module, and the P3.7 pin of the temperature acquisition CPU module is connected to the RXD pin of the temperature acquisition communication ZigBee module; The positive pole of the temperature acquisition power supply module is connected to the VCC pin of each chip, and the negative pole of the temperature acquisition power supply module is connected to the GND pin of each chip; The test base station circuit includes a base station liquid crystal display module, a base station power supply module, a base station CPU module and a base station communication Zigbee module; wherein, the base station liquid crystal display module can display the test results sent by the temperature collector and the leakage current collector, and its VCC The pin and A pin are connected to the positive pole of the base station power supply module, and the GND, Vo, RW, and K pins of the base station liquid crystal display module are connected to the negative pole of the base station power supply module at the same time, and its DATA0 to DATA7 pins are connected to P1.0 to P1.0 of the base station CPU module. P1.7 one-to-one connection; the base station communication Zigbee module is used to accept the test results sent by the temperature collector and leakage current collector, among them, the P3.6 pin of the base station CPU module is connected to the TXD pin of the base station communication Zigbee module The P3.7 pin of the base station CPU module is connected to the RXD pin of the base station communication Zigbee module; the positive pole of the base station power supply module is connected to the VCC pin of each chip, and the negative pole of the base station power supply module is connected to the GND pin of each chip .