CN112616128B - Electric power wireless repeater system suitable for short-distance data transmission - Google Patents
Electric power wireless repeater system suitable for short-distance data transmission Download PDFInfo
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- CN112616128B CN112616128B CN202011477901.1A CN202011477901A CN112616128B CN 112616128 B CN112616128 B CN 112616128B CN 202011477901 A CN202011477901 A CN 202011477901A CN 112616128 B CN112616128 B CN 112616128B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention relates to the field of power equipment, in particular to a power wireless repeater system suitable for short-distance data transmission. According to the invention, sensor data on each tower is connected with a router arranged on the tower through a sub wireless repeater, each router is connected with a main wireless repeater through a ZigBee network, the main wireless repeater transmits data to a main control module of the repeater through a serial port, a 12V-to-5V voltage reduction circuit of the sub wireless repeater and the main wireless repeater is connected with a 5V-to-3.3V voltage reduction circuit, the 5V-to-3.3V voltage reduction circuit is connected with a protection circuit, the protection circuit is respectively connected with a main control board and a signal acquisition and receiving module, and the main control board is respectively connected with the signal acquisition and receiving module, a TF card module and a 4G sending module. The communication mode of the invention is convenient for transmitting the electric power operation data of a certain area to a remote place in a centralized way.
Description
Technical Field
The invention relates to the field of power equipment, in particular to a power wireless repeater system suitable for short-distance data transmission.
Background
The power grid system equipment is distributed in a geographical space, and along with the development of personnel reduction and efficiency improvement work, unattended operation is gradually popularized.
The operating condition that many positions need set up the sensor in order to monitor power equipment on the current shaft tower, how to transmit numerous sensor signal validity period and economic long-time to overall monitoring system is difficult originally because in the open air, especially remote wilderness does not have ready-made reliable wireless or wired network, adopts modes such as equipment directly links the cost too high, and equipment also breaks the connection because of sleet weather easily if the wiring is too much. Meanwhile, as each tower needs to be provided with a plurality of wireless repeaters, the problem also exists how to quickly install and adjust the equipment. If the inclination of the solar panel needs to be adjusted at each site, the corresponding devices can be assembled only on site, and the site environment is generally complicated, so that the installation time is long.
Disclosure of Invention
In view of the shortcomings of the prior art, the invention provides a power wireless repeater system suitable for short-distance data transmission. The communication mode of the invention is convenient for transmitting the electric power operation data of a certain area to a remote place in a centralized way, and the equipment is convenient for outdoor field installation and angle adjustment and only needs simple installation.
The technical scheme of the invention is as follows: a power wireless repeater system suitable for short-distance data transmission comprises a sub wireless repeater, a router and a main wireless repeater, and is characterized in that: in an area, sensor data on each tower is connected with routers arranged on the tower through a sub wireless repeater, each router is connected with a main wireless repeater through a ZigBee network, the main wireless repeater transmits data to a main control module of the repeater through a serial port, the format of serial port data packaged into an I1 message by the control module in the main control module is uploaded to a power information platform through a 4G module, the sub wireless repeater and the main wireless repeater are the same wireless repeater and comprise a 12V-to-5V voltage reduction circuit, a 5V-to-3.3V voltage reduction circuit, a protection circuit, a main control board, a signal acquisition receiving module, a TF card module, a 4G sending module, a 12V-to-5V voltage reduction circuit, a 5V-to-3.3V voltage reduction circuit and a protection circuit, the 12V-to-5V voltage reduction circuit is connected with the 5V-to-3.3V voltage reduction circuit, the 5V-to-3.3V voltage reduction circuit is connected with the protection circuit, the protection circuit is respectively connected with the main control board and the signal acquisition receiving module, the main control board is respectively connected with the signal acquisition receiving module and the TF card sending module.
The beneficial effects of the invention are: the method has the advantages that firstly, the electric power operation data in a certain area can be conveniently and intensively transmitted to a remote place, and the cost is low; and secondly, only the screws need to be adjusted on site, so that the field installation is convenient. Thirdly, simple structure, weight is lighter, is suitable for outdoor operations. And fourthly, a wireless repeater device technology which can be used as a wireless repeater or a total wireless repeater is provided, and the universality of the device is improved.
Drawings
Fig. 1 is a schematic layout diagram of a wireless power repeater system suitable for short-distance data transmission.
Fig. 2 is a fixing structure of a power wireless repeater according to the present invention.
Fig. 3 is a schematic structural diagram of the adjusting device of the present invention.
FIG. 4 is a schematic structural diagram of the present invention.
Fig. 5 is a schematic structural view of a power supply part.
Description of reference numerals: the wireless repeater comprises a sub wireless repeater 101, a router 102, a main wireless repeater 103, a 12V-to-5V voltage reduction circuit 11, a 5V-to-3.3V voltage reduction circuit 21, a protection circuit 31, a solar panel 2, a lithium battery 3, a solar connecting wire 4, a repeater connecting wire 5, a connecting plate 6, an adjusting device 7, a fixing plate 71, a hinge 72, a T-shaped joint 73, an orthodontic screw 74, an anti-tooth screw 75, a turnbuckle 76, an anti-tooth nut 77 and an orthodontic nut 78.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings.
As shown in fig. 1, the wireless power repeater system suitable for short-distance data transmission of the present invention includes a sub wireless repeater 101, a router 102, and a main wireless repeater 103, in one area, sensor data on each tower is connected to the router 102 arranged on the tower through the sub wireless repeater 101, and the connection is a ZigBee network wireless data transmission connection. Each router 102 is connected with the main wireless repeater 103 through a ZigBee network, the main wireless repeater 103 transmits data to a main control module of the repeater through a serial port, and the main control module packages the serial port data into an I1 message format and uploads the I1 message format to the power information platform through the 4G module. This enables all data within one local area to be transmitted remotely. The area of the invention can be all towers within the radius of 1 km. The system can transmit the operation data of the electric power equipment in one area to a remote control platform, has less equipment quantity, and is suitable for a detection system of the real-time data of the power grid which is inconvenient for laying a network in a suburb.
As shown in fig. 2 and fig. 3, the power wireless repeater fixing structure convenient to install of the invention includes a sub wireless repeater 101, a solar panel 2, a lithium battery 3, a connecting plate 6 and an adjusting device 7, wherein the sub wireless repeater 101, the lithium battery 3 and the adjusting device 7 are fixed on the connecting plate 6, the solar panel 2 is movably connected to the adjusting device 7, and the angle of the solar panel 2 relative to the adjusting device 7 can be adjusted. The sub-wireless repeater 101 and the lithium battery 3 are preferably fixed on two sides of the solar panel respectively, and the positions of the sub-wireless repeater and the lithium battery can be changed as required. Solar panel 2 is connected with lithium cell 3 through solar connecting wire 4, makes it to charge for lithium cell 3, and lithium cell 3 passes through repeater connecting wire 5 and is connected with dividing wireless repeater 101, makes it can provide the power for dividing wireless repeater 101 normal work.
As shown in fig. 3, the adjusting device 7 of the present invention comprises a fixing plate 71, a solar panel 2, a hinge 72 and a reclining device, wherein the fixing plate 71 is fixedly mounted on a connecting plate 6, and the whole device is mounted at a position to be mounted through the connecting plate 6. The fixing plate 71 and the solar panel 2 are connected together by hinges 72, the number of the hinges 72 may be one, two or more, and two hinges 72 are provided in fig. 2. When the pitch angle is adjusted, the fixing plate 71 is fixed, and the solar panel 2 rotates around the rotating shaft of the hinge 72 through the change of the length of the angle adjusting device, so that the angle between the fixing plate 71 and the solar panel 2 is adjusted. Each angle adjusting device of the invention comprises two T-shaped joints 73, an orthodontic screw 74, an anti-orthodontic screw 75, a turnbuckle 76, an anti-orthodontic nut 77 and an orthodontic nut 78, wherein the two T-shaped joints 73 are respectively fixed on the fixed plate 71 and the solar panel 2, the anti-orthodontic screw 75 is movably connected with the T-shaped joint 73 fixed on the solar panel 2, the orthodontic screw 74 is movably connected with the T-shaped joint 73 fixed on the fixed plate 71, for example, the T-shaped joint 73 is connected with the orthodontic screw 74 and the anti-orthodontic screw 75 by pin shafts, so that the orthodontic screw 74 and the anti-orthodontic screw 75 can rotate along the shaft of the T-shaped joint 73, as shown in figure 3, therefore, when the angle adjusting device is changed or shortened, the angles of the T-shaped joint 73, the orthodontic screw 74 and the anti-orthodontic screw 75 are changed, and the pitch angle is changed. The reverse threaded rod 75 is connected to the turnbuckle 76 by a reverse threaded nut 77, and the forward threaded rod 74 is connected to the turnbuckle 76 by a forward threaded nut 78.
One, two or more angle adjusting devices can be arranged between the fixing plate 71 and the solar panel 2, for example, two angle adjusting devices are arranged in fig. 3, and when the length needs to be adjusted, the length of the angle adjusting devices can be adjusted by rotating the turnbuckle 76.
When the angle adjustment is carried out, the tightened orthodontic nut 78 and the counter-orthodontic nut 77 (one on the left and right of the central plane) are loosened, when the turnbuckle 76 is rotated anticlockwise, the length of the part of the two screw rods screwed into the turnbuckle 76 is increased, the solar panel 2 is driven to rotate clockwise around the hinge 72, and the elevation angle of the solar panel 2 is increased; when the turnbuckle 76 is rotated clockwise, the elevation angle of the solar panel 2 becomes smaller, and when the desired angle is adjusted, the orthodontic nut 78 and the anti-orthodontic nut 77 are tightened. The range of the solar panel 2 pitch angle adjustment of the present invention depends on the length of the turn buckle 76 and the screw. The invention adopts universal parts for assembly, reduces the processing cost, and has the characteristics of high cost performance, convenient adjustment and the like. Thus, the device of the invention can adjust the angle of the solar panel only by adjusting the turnbuckle 76 on site, and is convenient for on-site installation.
As shown in fig. 4, the sub wireless repeater 101 and the main wireless repeater 103 of the present invention may be the same wireless repeater, the present invention also discloses a wireless repeater that can be used as both the sub wireless repeater 101 and the main wireless repeater 103, the wireless repeater includes a 12V to 5V step-down circuit 11, a 5V to 3.3V step-down circuit 21, a protection circuit 31, a main control board, a signal acquisition and reception module, a TF card module, a 4G transmission module, a 12V to 5V step-down circuit 11, a 5V to 3.3V step-down circuit 21, and a protection circuit 31, wherein the 12V to 5V step-down circuit 11 is connected to the 5V to 3.3V step-down circuit 21, the 5V to 3.3V step-down circuit 21 is connected to the protection circuit 31, and the protection circuit 31 is connected to the main control board and the signal acquisition and reception module, so as to provide a stable 3.3V dc power supply for the device. The main control board is respectively connected with the signal acquisition receiving module, the TF card module and the 4G sending module. The invention can also comprise a USB module, the USB module is connected with the main control board, the USB module is composed of a USB _ HOST part and a USB _ OTG part, wherein the USB _ HOST is a transmission module, image information obtained by the camera is transmitted to the USB chip through a USB interface, and then is transmitted to the TF card module for storage through the USB _ OTG module connected with the main control board through a signal line by the USB chip.
The signal acquisition and receiving module of the invention adopts a ZigBee ad hoc network mode to acquire sensor messages, realizes the interaction between a receiver and a processing core through a serial port, adopts a CC2530 radio frequency chip for receiving encrypted data sent by a sensor node CC2630, and obtains real-time data detected by a sensor after the encrypted data is decrypted by a state monitoring terminal downlink safety module, namely the encrypted chip, thereby providing the safety and confidentiality of communication contents of the invention. The signal acquisition receiving module can acquire data of a microclimate sensor, an inclination sensor, a temperature sensor and the like.
The TF card module is connected with the main chip, can be used for storing locally generated larger data, for example, image information acquired by a camera is stored in the TF card module, and can also be used for storing encrypted data.
The 4G sending module adopts an EC 20G wireless communication module as a communication mode of the convergent node and the power information data platform, and data is transmitted to the power database in a TF card encryption mode, so that the requirements of a wireless communication system on data rate and connection reliability are met.
The main control board adopts a T3-C main board to be responsible for data preprocessing, storage, preliminary analysis and the like, and finally encrypted data are sent to the electric power information data platform through the 4G sending module.
As shown in fig. 5, the 12V to 5V step-down circuit 11 of the invention includes a solar panel U1, a storage battery U, a 12V to 5V chip U2, a first inductor L1, a second inductor L2, a first capacitor C1, a second capacitor C2, and a third capacitor C3, wherein an input end of the storage battery U is connected to the solar panel U1, an output end of the storage battery U is connected to the first inductor L1 and the first capacitor C1, the first inductor L1 is connected to a ground connection end of the 12V to 5V chip U2 after being connected to the second capacitor C2, and the first inductor L1 is connected to an input voltage end of the 12V to 5V chip U2, so that the 12V voltage output by the solar panel U1 can be converted into 5V voltage, and the output voltage ripple is ensured to be small by inductor and capacitor filtering. The output end of the chip U2 with the voltage of 12V to 5V is connected with the second inductor L2, and the second inductor L2 is connected with the third capacitor C3 in parallel and then connected with the input of the voltage reducing circuit 21 with the voltage of 5V to 3.3V. The chip U2 converting 12V to 5V can be a B1205S-1S chip. Because the power wireless repeater is small-power-consumption electrical equipment, solar energy in general regions can be used in all weather, so that the device can be used for a long time, independent power supply or battery replacement is not needed, and the device is particularly used in the field.
The 5V-to-3.3V step-down circuit 21 comprises a 5V-to-3.3V chip U2, a fourth capacitor C4, a fifth capacitor C5, wherein a voltage input end of the 5V-to-3.3V chip U2 is connected with an output end of a 12V-to-5V chip U2, one end of the fourth capacitor C4 and one end of the fifth capacitor C5 are respectively connected with a voltage input end and an output end of the 5V-to-3.3V chip U2, and the other end of the fourth capacitor C4 and the fifth capacitor C5 are connected with a direct current ground. The chip U2 for converting 5V into 3.3V can be an MCP33-33 chip.
As shown in fig. 5, the protection circuit 31 of the present invention includes a fuse R1, a zener diode D1, and a diode D2. The voltage output end of the chip U2 which is used for converting 5V into 3.3V is connected with the fuse R1, the output end of the fuse R1 is connected with the cathode of the voltage stabilizing diode D1, the anode of the voltage stabilizing diode D1 is connected with a direct current ground, the cathode of the voltage stabilizing diode D1 is connected with the anode of the diode D2, and the cathode of the diode D2 is connected with the direct current output end. The fuse R1 and the voltage stabilizing diode D1 form an alternating current and direct current input overvoltage protection circuit 31, when direct current input voltage is higher, the voltage stabilizing diode D1 can clamp input high voltage into a voltage range which can be borne by low voltage direct current input, and as long as energy reaches the state that the fuse R1 is burnt, so that the rear-end circuit is protected from being damaged. The diode D2 functions to protect the back-end circuit of the diode 2 from reverse voltage. When a direct current input is reversely input from the ground terminal, the voltage stabilizing diode D1 is conducted in the forward direction and clamps the voltage to-0.7V, the back voltage of the 0.7V is sometimes fatal to a device with low back voltage resistance, and the diode D2 is arranged for better protecting the back end circuit of the diode D2 from the damage of the reverse voltage. The invention uses the high-current fusing characteristic of the fuse R1, the instant high-current resistance characteristic of the voltage-stabilizing diode D1 and the direction non-conductivity of the diode D2, plays a good role in protecting devices of the wireless repeater, and avoids large-area damage or more serious accidents of a power supply.
In the aspect of data wireless receiving, the ZigBee ad hoc network mode is adopted to obtain the sensor message, and the interaction between the receiver and the processing core is realized through the serial port. For data processing, different types of sensor messages are connected to respective data processing program modules. In the aspect of data communication between the repeater and the server, in order to realize data encryption transmission, the repeater establishes a VPN (virtual private network) channel in a TF (TransFlash) card module encryption mode, realizes encryption transmission of an I1 data message, and improves the security of the sensing data of the power transmission line. The wireless repeater provided by the invention has the characteristics of high receiving sensitivity, good real-time performance, safe data transmission and the like. The encryption mode of the invention realizes the safe transmission of data between the sensor monitoring terminal and the electric power information platform; on the other hand, the Zigbee multi-hop mode is adopted to solve the problem that the data reception is abnormal or cannot be uploaded due to the fact that the transmission distance between the sensor and the repeater is long or the AP flow is too large to form congestion, and is suitable for secret communication of the power system.
The wireless repeater of the invention is suitable for wireless data transmission within a range of 2km, so the short-distance data transmission of the invention refers to wireless power data transmission within a range of less than or equal to 2 km.
Claims (8)
1. A power wireless repeater system suitable for short-distance data transmission comprises sub wireless repeaters, routers and a main wireless repeater, wherein in one area, sensor data on each tower is connected with the routers arranged on the tower through the sub wireless repeaters, each router is connected with the main wireless repeater through a ZigBee network, the main wireless repeater transmits data to a main control module of the repeater through a serial port, and the main control module packages the serial port data into an I1 message format and uploads the I1 message format to a power information platform through a 4G module; the sub-wireless repeater and the main wireless repeater are the same wireless repeater and comprise a 12V-to-5V voltage reduction circuit, a 5V-to-3.3V voltage reduction circuit, a protection circuit, a main control board, a signal acquisition receiving module, a TF card module, a 4G sending module, a 12V-to-5V voltage reduction circuit, a 5V-to-3.3V voltage reduction circuit and a protection circuit, wherein the 12V-to-5V voltage reduction circuit is connected with the 5V-to-3.3V voltage reduction circuit, the 5V-to-3.3V voltage reduction circuit is connected with the protection circuit, the protection circuit is respectively connected with the main control board and the signal acquisition receiving module, and the main control board is respectively connected with the signal acquisition receiving module, the TF card module and the 4G sending module; still include the wireless repeater fixed knot of electric power constructs, the wireless repeater fixed knot of electric power constructs including wireless repeater, solar panel, lithium cell, connecting plate, adjusting device, and wireless repeater, lithium cell and adjusting device are fixed at the connecting plate, and solar panel passes through the solar connecting wire and is connected with the lithium cell, and the lithium cell passes through the repeater connecting wire and is connected its characterized in that with wireless repeater: solar panel swing joint is on adjusting device, solar panel is adjustable for adjusting device's angle, adjusting device includes the fixed plate, solar panel, hinge and angle modulation device, fixed plate fixed mounting is on the connecting plate, fixed plate and solar panel pass through hinge connection and be in the same place, the angle modulation device includes two T type joints, the orthodontic screw rod, anti-tooth screw rod, basket screw, anti-tooth nut, orthodontic nut, two T type joints are fixed respectively at the fixed plate, solar panel is last, anti-tooth screw rod swing joint with fix the T type articulate on solar panel, orthodontic screw rod swing joint with fix the T type articulate on the fixed plate, anti-tooth screw rod is through anti-tooth nut and basket screw connection, orthodontic screw rod passes through orthodontic nut and basket screw connection.
2. A power wireless repeater system adapted for short range data transmission according to claim 1, wherein: the area is all towers with the radius of 1 km.
3. A power wireless repeater system adapted for short range data transmission according to claim 1, wherein: the T-shaped joint is connected with the orthodontic screw and the inverted orthodontic screw through pin shafts.
4. A power wireless repeater system adapted for short range data transmission according to claim 1, wherein: two angle adjusting devices are arranged between the fixed plate and the solar panel.
5. A power wireless repeater system adapted for short range data transmission according to claim 1, wherein: the wireless repeater and the lithium battery are respectively fixed on two sides of the solar panel.
6. A power wireless repeater system adapted for short range data transmission according to claim 1, wherein: 12V changes 5V step-down circuit and includes solar panel, the battery, 12V changes 5V chip, first inductance, the second inductance, first electric capacity, the second electric capacity, the third electric capacity, the battery input end is connected with solar panel, the battery output end is connected with first inductance and first electric capacity, first inductance inserts behind the second electric capacity and changes 5V chip ground link with 12V and be connected, first inductance is connected with the input voltage end that 12V changes 5V chip, 12V changes 5V chip output and is connected with the second inductance, the second inductance changes 3.3V step-down circuit input connection with 5V after parallelly connected with the third electric capacity.
7. A power wireless repeater system adapted for short range data transmission according to claim 1, wherein: the 5V-to-3.3V voltage reduction circuit comprises a 5V-to-3.3V chip, a fourth capacitor and a fifth capacitor, wherein a voltage input end of the 5V-to-3.3V chip is connected with an output end of the 12V-to-5V chip, one end of the fourth capacitor and one end of the fifth capacitor are respectively connected with a voltage input end and an output end of the 5V-to-3.3V chip, and the other end of the fourth capacitor and the fifth capacitor are connected with a direct current ground.
8. A power wireless repeater system adapted for close range data transmission according to claim 1, wherein: the protection circuit comprises a fuse, a voltage stabilizing diode and a diode, wherein the voltage output end of a chip which is converted from 5V to 3.3V is connected with the fuse, the output end of the fuse is connected with the cathode of the voltage stabilizing diode, the anode of the voltage stabilizing diode is connected with a direct current ground, the cathode of the voltage stabilizing diode is connected with the anode of the diode, and the cathode of the diode is connected with the direct current output end.
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| CN202011477901.1A CN112616128B (en) | 2020-12-15 | 2020-12-15 | Electric power wireless repeater system suitable for short-distance data transmission |
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| CN202011477901.1A CN112616128B (en) | 2020-12-15 | 2020-12-15 | Electric power wireless repeater system suitable for short-distance data transmission |
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| CN112616128B true CN112616128B (en) | 2023-01-13 |
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| CN105785430A (en) * | 2016-05-09 | 2016-07-20 | 辽宁工程技术大学 | Real-time monitoring system and method for mine earthquake |
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