CN203811699U - A Zigbee-based temperature observation system for solar panel wire joints - Google Patents

Abstract

The utility model discloses a ZigBee-based solar panel conductor joint temperature observation system, which belongs to data monitoring and acquisition equipment in the operation of an electric power system, and can realize multi-point acquisition and data integration transmission of conductors and their joint temperatures. The observation system includes solar cell components, temperature data acquisition device, data transmission network, and monitoring master station. The utility model utilizes solar energy technology to greatly reduce the cost of using a high-voltage induction power-taking device while ensuring power supply, and the ZigBee technology realizes industrial-grade high-efficiency and low-power wireless data transmission with zero communication costs.

Description

A Zigbee-based temperature observation system for solar panel wire joints

technical field

The utility model relates to a temperature observation system, in particular to a ZigBee technology-based observation system aimed at the temperature of wire joints powered by solar energy, which belongs to data monitoring and acquisition equipment in power system operation.

Background technique

Transmission line jumper joints, especially those connected with parallel trench clamps, or joints using bolt clamps at the down conductors of substations, after a period of operation, individual clamps may be damaged due to various reasons such as loose bolts and oxidation of the aluminum surface. , the contact resistance increases. When a relatively large load current is passed, the local area of the contact surface of the clamp becomes red, so that it is burnt into a hole or the surface is burnt uneven, which further increases the contact resistance, and in severe cases, the jumper (or down conductor) is burnt. ) resulting in an accident. Such accidents are common all over the country. The jumper joints that are prone to failure need to be equipped with a wire joint temperature observation system to prevent accidents.

At present, the commonly used monitoring technology is the self-temperature measurement technology of intelligent transmission wires. This technology incorporates communication optical fibers into traditional steel-cored aluminum stranded wires for dynamic temperature measurement, and can accurately grasp the temperature change curve of the wires. On-the-road inductive power collection and lithium batteries are used to power the system together. The entire system consumes a lot of power, and the implementation cost is high, which is not conducive to promotion.

Contents of the invention

In view of the above defects, the utility model provides an observation system powered by solar energy and capable of transmitting temperature data of wire joints by using ZigBee wireless network communication. The system can realize multi-point acquisition and data integration and transmission of the temperature of wires and their joints.

In order to achieve the above object, the utility model adopts the following technical scheme: a ZigBee-based solar panel wire joint temperature observation system includes solar cell components, some temperature data acquisition devices, data transmission network and monitoring master station, wherein the temperature data acquisition device Contains a coordinator and several sub-nodes; the solar cell module supplies power to the coordinator and each sub-node in the temperature data acquisition device; the sub-nodes are installed on the jumper joints of the transmission line to collect wire temperature, joint temperature and wire current , and then transmit the collected data to the coordinator through the ZigBee network; the coordinator transmits the data it receives to the monitoring master station through the data transmission network.

Further, the data transmission network is a GSM or GPRS network.

Specifically, the solar cell assembly includes a storage battery, a solar charging board and a solar charging controller connected to the solar charging board, and the solar charging controller controls the output of the solar charging board. The solar charge controller stores the output energy of the solar charging panel in the storage battery.

More specifically, the monitoring master station includes a monitoring host, a man-machine interface module, a wireless communication interface module, and a number of external devices. The monitoring host is connected to the man-machine interface module, and the man-machine interface module is connected to each external device. The device communicates with the wireless communication interface module. the

The beneficial effect of the utility model lies in that the utility model adopts a solar cell group for power supply, uses a charging controller to effectively obtain clean solar energy, and greatly reduces the cost caused by using a high-voltage induction power-taking device. ZigBee-based wireless technology simplifies data acquisition terminal equipment, does not require additional power supply lines and data transmission lines, and has the advantages of high efficiency, low consumption, flexibility, and low cost.

Description of drawings

Fig. 1 is a system structure diagram of the present utility model;

In the figure: 1-solar battery module, 2-several temperature data acquisition devices, 3-monitoring master station, 1.1-battery, 1.2-solar charge controller, 1.3-solar panel, 2.1-coordinator, 2.2-several sub-nodes , 3.1-wireless communication interface module, 3.2-external equipment, 3.3-man-machine interface module, 3.4-monitoring host.

Detailed ways

As shown in Figure 1, the utility model comprises a solar cell assembly 1, several temperature data acquisition devices 2, a data transmission network and a monitoring master station 3, wherein the temperature data acquisition device 2 includes a plurality of measurement clusters, and each cluster consists of 1 A coordinator 2.1 and several sub-nodes 2.2 are formed; the solar cell assembly 1 supplies power to the coordinator 2.1 and each sub-node 2.2 in the temperature data acquisition device 2; Conductor temperature, joint temperature and conductor current, and then transmit the collected data to the coordinator 2.1 through the ZigBee network; the coordinator 2.1 transmits the data it receives to the monitoring master station 3 through the data transmission network.

The solar battery assembly includes a battery 1.1, a solar charge controller 1.2 and a solar panel 1.3, and the solar battery panel 1.3 realizes its maximum output power tracking control through the solar charge controller 1.2, and stores the output energy in the battery In 1.1, power is supplied to the data acquisition device at the same time.

The temperature data acquisition device 2 is responsible for monitoring all joint data on a pole tower, collecting wire temperature, joint temperature and wire current, and uploading them to the coordinator through the ZigBee network at a certain time interval.

The data network transmission system refers to the Global System for Mobile Communications (GSM) Short Message Service (SMS) or General Packet Radio Service (GPRS) network, which mainly realizes the data communication between the coordinator and the monitoring master station.

Described monitoring main station 3 comprises monitoring main frame 3.4, man-machine interface module 3.3, wireless communication interface module 3.1 and some external equipment 3.2; Described monitoring main frame 3.4 realizes the display of data, analysis and the control to other modules; The man-machine interface module 3.3 provides an operation interface for the user; the wireless communication interface module 3.1 provides an interface for external devices to communicate with the data transmission network. External equipment includes peripheral registers for receiving and storing transmitted data; decoding digital signals into analog video, audio, and alarm signal output, which is convenient for displaying images, making sounds, and triggering alarms; 1. The alarm signal is encoded into a digital signal, which is convenient for network transmission. On the other hand, the audio and alarm digital signal is converted into an analog signal output; external audio equipment; video display equipment, etc. The working principle of the utility model system will be described in detail below.

The solar battery module 1 operates the solar charging board 1.3 through the solar charging controller 1.2 to control the maximum power output, obtains as much solar energy as possible to supply power to the temperature data acquisition device, and stores excess electricity in the storage battery 1.1 for backup. The sensors of each sub-node 2.2 in the temperature data acquisition device 2 detect the temperature of the conductor, the node temperature and the conductor current, and upload them to the coordinator 2.1 through the ZigBee network at a certain time interval, and the coordinator 2.1 passes the global mobile communication after receiving the data. System (GSM) Short Message Service (SMS) or General Packet Radio Service (GPRS) is sent to the monitoring master station 3, and the monitoring master station 3 comprehensively analyzes the received temperature and current data through the system in the monitoring master station, thereby judging Current operating conditions of outgoing conductor joints and forecast their development trends. At the same time, the master station can send commands through GSM to modify the operating parameters of the measurement group, so as to realize the control of the joint online monitoring operation mode.

Here, some features and a method of implementation of the utility model are described, but other structural changes, substitutions and modifications based on the technical solution of the utility model should also be included in the protection scope of the utility model claims, and the specific protection scope The scope of the appended claims shall prevail.

Claims (5)

1. A ZigBee-based solar panel wire joint temperature observation system, characterized in that: comprising solar cell components (1), several temperature data acquisition devices (2), data transmission network and monitoring master station (3), wherein the The temperature data acquisition device (2) includes a coordinator (2.1) and several sub-nodes (2.2); ) power supply; the sub-node (2.2) is installed on the jumper connector of the transmission line, collects the temperature of the wire, the temperature of the joint and the current of the wire, and then transmits the collected data to the coordinator (2.1) through the ZigBee network; the coordinator ( 2.1) Transmit the received data to the monitoring master station (3) through the data transmission network. 2. A ZigBee-based solar panel wire joint temperature observation system according to claim 1, characterized in that: the solar battery module (1) includes a solar charging board (1.3) and a solar charging board (1.3) connected The solar charge controller (1.2), the solar charge controller (1.2) controls the output of the solar charge panel (1.3). 3. A ZigBee-based solar panel wire joint temperature observation system according to claim 1 or 2, characterized in that: the solar battery module (1) also includes a storage battery (1.1), and the solar charge controller (1.2 ) to store the output energy of the solar charging panel (1.3) in the storage battery (1.1). 4. A ZigBee-based solar panel wire joint temperature observation system according to claim 1 or 2, characterized in that: the data transmission network is a GSM or GPRS network. 5. A ZigBee-based solar panel wire joint temperature observation system according to claim 1, characterized in that: the monitoring master station (3) includes a monitoring host (3.4), a man-machine interface module (3.3), a wireless communication interface module (3.1) and several external devices (3.2), the monitoring host (3.4) is connected to the human-machine interface module (3.3), the human-machine interface module (3.3) is connected to each external device (3.2), each external device ( 3.2) Connect and communicate with the wireless communication interface module (3.1).