CN204190479U - A communication terminal for on-line monitoring of distribution lines supporting small wireless and GPRS communication - Google Patents

Abstract

The utility model discloses a kind of distribution line on-line monitoring communication terminal supporting small wireless to communicate with GPRS, comprise communication terminal casing, described communication terminal box house is provided with circuit board, described circuit board is integrated with communication module, described circuit board is by Power supply, described communication terminal cabinet front hinged installation one chamber door, described communication module comprises short-distance wireless communication unit and GPRS wireless public network communication unit, described short-distance wireless communication unit and the intelligent line fault detector be installed on three-phase line carry out short-distance wireless communication and obtain real-time sampling data, described GPRS wireless public network communication unit is connected with main station system by GPRS wireless public network, and the timing of the sampled data of three-phase line is reported main station system, described power supply comprises the storage battery of sun-generated electric power as main working power and power supply in support.The utility model improves communication efficiency and the communication reliability of communication terminal and main website.

Description

A communication terminal for on-line monitoring of distribution lines supporting small wireless and GPRS communication

technical field

The utility model relates to a communication terminal for on-line monitoring of power distribution lines supporting small wireless and GPRS communication.

Background technique

The traditional distribution line online monitoring communication terminal and the distribution line online collection terminal adopt short-distance one-way wireless communication; on the one hand, this communication method causes the distribution line online collection terminal to be unable to receive modification parameters or remote control instructions from the communication terminal , when modifying the parameters, it can only be modified on site; on the other hand, the communication efficiency with the main station is low, and the main station cannot collect complete and real-time line data and communication terminal working condition information.

Utility model content

The technical problem to be solved by the utility model is to provide an on-line monitoring communication terminal for power distribution lines supporting small wireless and GPRS communication, so as to improve communication efficiency and reliability.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: an on-line monitoring communication terminal for power distribution lines supporting small wireless and GPRS communication, including a communication terminal box, and a circuit board is installed inside the communication terminal box. A communication module is integrated on the circuit board, the circuit board is powered by a power supply, a box door is hingedly installed on the front side of the communication terminal box, and the communication module includes a short-distance wireless communication unit and a GPRS wireless public network communication unit. The short-distance wireless communication unit performs short-distance wireless communication with the intelligent line fault indicator installed on the three-phase line and obtains real-time sampling data, and the GPRS wireless public network communication unit is connected with the main station system through the GPRS wireless public network, And regularly report the sampling data of the three-phase line to the main station system. The power supply includes a solar power supply as the main working power supply and a storage battery as a backup power supply. The storage battery is installed in the communication terminal box, and the solar power supply is installed in the solar On the bracket, the solar bracket includes a base plate for installing solar panels, and the base plate includes a front plate portion that covers the door of the communication terminal box and is arranged on the left and right sides of the front plate portion and extends obliquely to the rear side to block the communication terminal. As for the side plate portion on the side of the terminal box body, an upper eave portion connected to the side plate portion and covering the upper side of the communication terminal box body is provided on the upper side of the front plate portion.

Preferably, the solar cell panel includes a reflective film and a thin-film solar cell sheet attached to the reflective film, and the thin-film solar cell sheet is provided with three pieces corresponding to the front panel and the side panel of the substrate. Folding edges are arranged between two adjacent thin-film solar cells, and the lead wires of each thin-film solar cell are connected to the main power line.

Preferably, the battery leads of the thin-film solar cell are divided into upper and lower two according to the different polarities of the positive and negative electrodes, and the reflective film is laid with main power lines on the upper and lower sides of the thin-film solar cell. The battery lead is laid along the folded edge and finally welded to the main power line.

Preferably, the main power line is connected to the circuit board and the storage battery after being stabilized by a solar power supply voltage stabilizing circuit.

The communication terminal for on-line monitoring of power distribution lines of the utility model communicates with the collection terminal by using the wireless communication technology supporting two-way communication, and communicates with the main station system by using the mature and standardized GPRS power private network communication technology. This communication method makes it possible to remotely modify and remotely control the online acquisition terminal of the distribution line, and at the same time improves the communication efficiency and communication reliability between the communication terminal and the master station.

Adopt the beneficial effect of the utility model:

(1) Adopt the wireless communication technology that supports two-way communication, so that the online monitoring and collection terminals of distribution lines can realize remote modification of parameters, saving manpower and time, and at the same time make the collection terminals more convenient to adapt to different line environments;

(2) Adopt the mature and standardized GPRS power private network communication technology to make the communication between the distribution line online monitoring communication terminal and the main station safer and more efficient; at the same time, it can increase the integrity and real-time performance of data such as line current and electric field.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described:

Fig. 1 is a schematic diagram of the cooperation structure of the cabinet and the solar power supply (the cabinet door is closed and the substrate is unfolded);

2 is a schematic diagram of a solar panel;

Fig. 3 is a schematic diagram of cooperation between the folding rod and the folding joint;

Fig. 4 is the structural representation of locking bar control mechanism;

Fig. 5 is a schematic structural view of the water blocking device.

detailed description

As shown in Figures 1 to 5, a distribution line online monitoring communication terminal includes a communication terminal box 5, a circuit board is installed inside the communication terminal box 5, and the circuit board is powered by a power supply. A box door is hingedly installed on the front side of the terminal box body. The circuit board is provided with an information processing unit, a short-distance wireless communication unit, and a GPRS wireless public network communication unit, and the short-distance wireless communication unit performs short-distance wireless communication with an intelligent line fault indicator installed on a three-phase line and obtains Real-time sampling data, the information processing unit processes the real-time sampling data, the GPRS wireless public network communication unit is connected with the main station system through the GPRS wireless public network, and regularly reports the sampling information of the three-phase line to the main station system , the circuit board is connected with a power line and a communication line, and the power line and the communication line pass through the threading hole at the bottom of the communication terminal box.

The distribution line online monitoring communication terminal communicates with the collection terminal through a small wireless communication method that supports two-way communication, receives the alarm data and task data actively sent by the collection terminal, and then forwards the data to the master station system through the GPRS power private network communication method ; Simultaneously receive the time synchronization command, control command and parameter setting command issued by the master station system, and forward the control command and parameter setting command to the acquisition terminal. The collection terminal includes an intelligent line fault indicator installed on the three-phase line.

(1) The communication mode of the short-distance wireless communication unit is wireless communication, which supports balanced communication.

(2) The communication mode of the GPRS wireless public network communication unit is GPRS communication. Support balanced communication, adopt low-power GPRS module, keep GPRS online for a long time.

Since the online monitoring communication terminal is mostly installed outdoors, its operating environment is extremely harsh, especially the waterproof and dustproof ability of its box body, which directly affects the reliability and service life of the device. In order to meet the requirements of the waterproof level of the box body, firstly, a sealing groove is provided on the edge of the front mouth of the box body, and a sealing ring matched with the sealing groove is provided on the edge of the box door, so as to meet the waterproof sealing requirements at the box door. In addition, the wiring hole at the bottom of the communication terminal box is also equipped with a rubber sealing ring, but in rainy days, some rainwater may still seep into the box along the power line and communication line through the sealing ring, which will bring hidden dangers to safety. Here, a water blocking device is provided below the bottom of the communication terminal box to prevent rainwater from passing through the threading hole.

As shown in Figure 5, the water blocking device 3 includes a water blocking plate 32, the water blocking plate is vertically arranged and covers the threading hole, and the water blocking plate is provided with a water blocking joint 31 corresponding to the power line and the communication line . The water blocking joint includes a flexible arc elbow 311, the high side of the arc elbow passes through the water blocking plate, and the bottom of the low side of the arc elbow is provided with a rainwater collection chamber that communicates with the inside of the arc elbow 312. A water outlet is provided at the bottom of the rainwater collection cavity. The lower port of the circular arc elbow is provided with a bell mouth 313 . The lower side of the circular arc elbow is provided with a positioning plate 314 against the plane of the water blocking plate. Due to the function of the water-blocking baffle and the water-blocking joint, rainwater cannot leak into the interior of the communication box along the communication line and power line, eliminating potential safety hazards.

The power supply includes a solar power supply as the main working power supply and a storage battery as a backup power supply, the storage battery is installed in the communication terminal box, and the solar power supply is installed on the solar support.

As shown in FIG. 1 , the solar bracket includes a base located below the communication terminal box 5 and a base plate 41 on which a solar panel 42 is installed. The solar panel 42 and the base plate 41 form a folding plate 4 that can rotate and fold relative to the base. Specifically, as shown in Figures 3 and 4, a folding rod 2 is provided at the bottom of the substrate, and a folding joint 1 is provided on the base, and the folding joint 1 includes a horizontally fixed straight pipe part and a Vertically arranged joint 11, the joint is hinged with the folding rod 2. Under normal conditions, the base board is arranged in front of the communication terminal box. When the box door needs to be opened, the base board is realized through the cooperation of the folding rod and the joint. Folding, a lock head 22 is fixed at the bottom end of the folding rod, the lock head is provided with a lock groove 23, the joint is provided with a vertical chute 13 corresponding to the lock groove, and a lock bar 14 is arranged in the chute , the joint is provided with a lock bar control mechanism to control the lock bar to slide up and down along the chute so that the lock bar snaps into or out of the lock slot.

The lock bar control mechanism includes an L-shaped lock bar control handle 15, the end of the lock bar control handle transverse part is hinged on the joint, the joint is provided with a lock bar control handle port 12, and the front end of the lock bar control handle transverse part is connected from the lock bar The opening of the control handle goes out, the vertical part of the lock lever control handle is connected to the front end of the horizontal part of the lock lever control handle and is located outside the opening of the lock lever control handle, and a slide rail mechanism is set between the horizontal part of the lock lever control handle and the lock lever to control the lock lever up and down sports.

The slide rail mechanism includes a sleeve 18 fixed in the joint, and a sliding rod 17 is sleeved in the sleeve, and a return spring 16 is arranged on both sides of the sliding rod. Back-moving spring 16 two ends are provided with hook and are respectively connected with lock bar control handle 15 transverse parts and lock bar 14, and slide bar 17 upper ends and lock bar control handle transverse parts can be connected by hook, between the slide bar lower end and lock bar 14. Directly connected, only when the lock bar control handle presses down and pushes the lock bar 14 to go down and break away from the lock groove 23, it contacts with the lock bar. The end of the slide bar 17 can be provided with a semicircular groove to cooperate with the lock bar. When the lock bar control handle 15 is released, the back-moving spring 16 promotes the lock bar control handle 15 to reset, and the lock bar control handle drives the slide bar 17 to reset simultaneously.

The section of the joint 11 of the folding joint 1 is U-shaped, and the section of the locking head 22 is also U-shaped. A protruding part 24 is provided on the opening side of the lock head, and the lock groove 23 is provided at one end of the protruding part 24 , and the slope 25 transitions between the lock groove and the bottom end of the lock head. The lock head 22 is fixed with the folding rod by a rivet.

Its working principle is: press down the lock lever control handle 15, the slide bar 17 goes down along the sleeve 18, the slide bar 17 pushes the lock lever 14 down and breaks away from the lock groove 23, so that the folding lever can rotate relative to the joint 11, and finally the substrate and its The solar panel on the top is folded up, and the box door can be opened at this time.

In addition, the front end of the protruding portion 24 of the locking groove is an arc-shaped structure 26 , so that when the folding lever is unfolded, the locking rod 14 can automatically snap into the locking groove 23 along the arc-shaped structure 26 .

As shown in FIG. 1 , the base plate 41 includes a front panel 411 that covers the door of the communication terminal box and side panels that are arranged on the left and right sides of the front panel and extend obliquely toward the rear to cover the sides of the communication terminal box. part 412, the upper side of the front board part is provided with an upper eaves part connected with the side board parts and covering the upper side of the communication terminal box. Since part of the rainwater may enter the upper side of the box through the upper eaves, the upper side of the box is set as a slope structure inclined to the rear side, and the rainwater can flow to the rear side of the box along the slope to avoid rainwater directly contacting the box. The door is in contact with the seal of the box.

In this way, the substrate covers the communication terminal box, which can prevent the box from being exposed to wind, rain, and sun, and improves the waterproof and dustproof effect. It can also isolate heat and prevent the communication terminal from heating up too quickly. In addition, it is also very important That is, the area of the solar panel is increased, so that the electric energy of the solar power supply can not only supply power for the online monitoring communication terminal, but also supply power for other power-demanding components.

As shown in Figure 2, the solar cell panel 42 includes a reflective film 421 and a thin film solar cell sheet 422 pasted on the reflective film, and the front plate portion and the side plate portion of the corresponding substrate of the thin film solar cell sheet are provided with three pieces. , the reflective film is provided with a folded edge 423 between two adjacent thin-film solar cells, and the battery leads of each thin-film solar cell are connected to the main power line. The structure of the solar cell panel is designed to adapt to the structure of the above-mentioned substrate, and has the advantages of a large illuminated area and a long service life. The reflective film can reflect part of the sun's rays, prevent the communication terminal box from heating up too quickly, and convert the absorbed solar energy into electrical energy to supply power to the communication terminal box, and the excess electrical energy is stored through the battery. The side-by-side thin-film solar cells are provided with folded edges, which can be easily folded at a certain angle corresponding to the inclined side panels, and will not cause damage to the thin-film solar cells, and are not easy to age.

The battery leads of the thin-film solar cells are divided into upper and lower two according to the different polarities of the positive and negative electrodes. The reflective film is laid with main power lines on the upper and lower sides of the thin-film solar cells. The folded edge is laid and finally welded with the main power line. The main power line is connected to the circuit board and the storage battery after being stabilized by the solar power supply voltage stabilizing circuit.

Through the combination of solar battery power supply and backup battery, solar power is usually used for power supply, and when the solar battery power is exhausted due to continuous rainy days, it is powered by the backup battery. On the one hand, solar energy is energy-saving and environmentally friendly and is not limited by the weight, capacity and service life of the backup battery. On the other hand, combined with the use of backup battery power, the online monitoring communication terminal of the distribution line does not have to worry about the normal operation due to insufficient power even in continuous rainy days, and at the same time ensures the service life of the battery.

Its beneficial effect is:

1) Solar power supply, environmental protection, energy saving, reducing the power consumption on the line;

2) The weight and volume of the backup battery can be reduced, and the battery cost and equipment cost can be reduced;

3) The solar battery is combined with the backup battery, so it will not be interrupted due to battery damage or power exhaustion. At the same time, even in continuous rainy weather, there is backup battery power supply, and the equipment will not affect the normal work.

4) The main power supply of solar energy, when the solar battery is exhausted in continuous cloudy and rainy days, the backup battery can be used again, which prolongs the service time of the battery.

5) Provide operating power for the switch on the column.

Claims (4)

1. the distribution line on-line monitoring communication terminal supporting small wireless to communicate with GPRS, comprise communication terminal casing, described communication terminal box house is provided with circuit board, described circuit board is integrated with communication module, described circuit board is by Power supply, described communication terminal cabinet front hinged installation one chamber door, it is characterized in that: described communication module comprises short-distance wireless communication unit and GPRS wireless public network communication unit, described short-distance wireless communication unit and the intelligent line fault detector be installed on three-phase line carry out short-distance wireless communication and obtain real-time sampling data, described GPRS wireless public network communication unit is connected with main station system by GPRS wireless public network, and the timing of the sampled data of three-phase line is reported main station system, described power supply comprises the storage battery of sun-generated electric power as main working power and power supply in support, described storage battery is installed in communication terminal casing, described sun-generated electric power is installed on solar bracket, described solar bracket comprises the substrate installing solar panel, described substrate comprises the header board portion that shelters from communication terminal casing chamber door and is located at the left and right sides, header board portion and rolls backward and tiltedly extends with the side plate sheltering from communication terminal body side, be provided with on the upside of described header board portion and be connected with side plate and shelter from the upper eaves portion on the upside of communication terminal casing.

2. distribution line on-line monitoring communication terminal according to claim 1, it is characterized in that: described solar panel comprises light reflecting membrane and is covered on the thin film solar cell sheet on light reflecting membrane, header board portion and the side plate of described thin film solar cell sheet counterpart substrate are provided with three pieces altogether, described light reflecting membrane is provided with flanging between two adjacent thin film solar cell sheet, and the battery lead of every sheet thin film solar cell sheet is connected with main power line.

3. distribution line on-line monitoring communication terminal according to claim 2, it is characterized in that: the battery lead of described thin film solar cell sheet is divided into upper and lower two according to the opposed polarity of both positive and negative polarity, described light reflecting membrane lays main power line on the both sides up and down of thin film solar cell sheet, and two battery leads of thin film solar cell sheet lay along flanging and finally weld with main power line.

4. distribution line on-line monitoring communication terminal according to claim 3, is characterized in that: described main power line carries out being connected with circuit board and storage battery after voltage stabilizing through sun-generated electric power voltage stabilizing circuit.