CN211702033U - Low-voltage power line carrier communication wireless detection device - Google Patents

Abstract

The utility model relates to a low pressure power line carrier communication wireless detection device belongs to power detection equipment technical field. The intelligent mobile phone comprises an intelligent mobile phone, special copying and controlling software and the like, wherein the special copying and controlling software installed in the intelligent mobile phone has the functions of Bluetooth connection communication, copying and controlling instruction sending and response decoding; the smart phone is wirelessly connected with the improved handheld copy controller Bluetooth conversion circuit through Bluetooth; the carrier module socket installed on the carrier module socket can be matched and plugged with different downlink carrier modules; the carrier module socket is connected with the battery, the carrier module socket is respectively connected with the voltage reduction module and the VDD end of the Bluetooth conversion circuit, and a serial port receiving line of the Bluetooth conversion circuit is connected with the inserted downlink carrier module communication interface sending end; the universal protocol specified by the national network is adopted, and the carrier communication protocol is converted by connecting the universal protocol with the weak current communication interface of the downlink carrier module, so that the universality is high. The carrier transmission line and the connection between the copy controller and the carrier converter are omitted, and the connection with strong current contact is not needed, so that the use is safe.

Description

Low-voltage power line carrier communication wireless detection device

Technical Field

The utility model relates to a low pressure power line carrier communication wireless detection device belongs to power line carrier communication on-the-spot check out test set technical field.

Background

The current electricity utilization information acquisition system mainly acquires the information of a user low-voltage electric energy meter in a low-voltage power line carrier communication mode. In the daily operation and maintenance of a system, a special handheld reading controller is often required to be adopted to detect the quality of a carrier module of an electric energy meter on site, when in detection, one special handheld reading controller is required to manually connect two carrier signal transmission lines to phase line and zero line binding posts of the electric energy meter by using an insulating wire clamp when a carrier signal communication loop is communicated, and the other special handheld reading controller is required to manually connect the carrier signal transmission lines to the power line binding posts of the electric energy meter when in-site detection is required; both of them need the worker to directly contact with the strong electric circuit, so the use is very unsafe; the multifunctional handheld meter reading and controlling device takes the carrier detection as an additional function, adopts an additional accessory mode, needs to purchase a carrier converter additionally, needs to carry a matched data connecting line and the carrier converter when in use, and is connected on site, so that the purchasing cost is high, and the operation is troublesome; more importantly, because the carrier wave schemes of each manufacturer are different, the special handheld copying controller cannot be used universally, and the matched products of the manufacturers must be used one by one, so that a plurality of special handheld copying controllers need to be purchased for a plurality of carrier wave schemes during field detection, and the price is high and the operation and maintenance cost is high.

Disclosure of Invention

An object of the utility model is to, be not enough to above-mentioned prior art, a smart mobile phone and the handheld supporting structure of the accuse ware of copying of improved generation that is provided with special accuse software of copying are provided, power line carrier signal transmission line is saved, save the special handheld line of copying accuse ware and carrier converter, staff's witnessed inspections need not with forceful electric power contact line, use safe and reliable, witnessed inspections can with multiple carrier wave scheme looks adaptation, realize all different carrier wave modules of one set of detection device detectable, the commonality is strong, connect dress convenient operation, moreover, the steam generator is simple in structure, effectively reduce cost's wireless detection device of low pressure power line carrier communication.

The utility model discloses a realize above-mentioned purpose through following technical scheme:

the utility model provides a low pressure power line carrier communication wireless detection device, it is by smart mobile phone, special use copy accuse software and the handheld accuse ware that copies of improved generation constitutes which characterized in that: the smart phone is internally provided with special copying and controlling software, and the special copying and controlling software has a Bluetooth connection communication function, a Bluetooth transmitting and copying instruction function and an answer decoding function; the improved handheld copying controller is provided with a Bluetooth conversion circuit, a carrier module socket, a battery, a power switch, a voltage reduction module and an asynchronous serial communication interface communication line; the smart phone is wirelessly connected with a Bluetooth conversion circuit of the improved handheld copying controller through a Bluetooth channel; the carrier module socket is mounted on the upper part of the front surface of the improved handheld copying controller and can be matched, plugged and connected with different downlink carrier modules; the battery power line is connected with the charging socket; the battery power line is connected with the communication interfaces GND and VDD pin of the carrier module socket through the power switch, is connected with the inserted weak current communication interfaces GND and VDD pin of the downlink carrier module and provides a 12V working power supply for the weak current communication interfaces GND and VDD pin; the 12V input end of the voltage reduction module is connected with the battery through the power switch, the output end of the voltage reduction module is connected with a communication interface V3P pin of the carrier module socket and is connected with a receiving pin of a low-current communication interface V3P of the inserted downlink carrier module, and the output end of the voltage reduction module is simultaneously connected with a Bluetooth conversion circuit VDD to provide a 3.3V working power supply for the Bluetooth conversion circuit and the inserted carrier module; the voltage reduction module and the Bluetooth module GND are connected with the battery GND; a serial port transmitting line TXD of the Bluetooth conversion circuit is connected with a receiving pin of a communication interface RXD of the carrier module socket and is connected with a receiving pin of an inserted weak current communication interface RXD of the downlink carrier module; a serial port receiving line RXD of the Bluetooth conversion circuit is connected to a TXD transmitting pin of a carrier module socket and is connected with a TXD transmitting pin of an inserted downlink carrier module weak current communication interface; the improved handheld copying controller adopts a general protocol specified by a national power grid, is connected with a weak current communication interface of a downlink carrier module, converts a carrier communication protocol by the downlink carrier module, can completely simulate a concentrator, can be compatible with any carrier scheme by replacing the downlink carrier module, and realizes field detection universality.

The instruction coding and decoding of the special copy control software adopts a Q/GDW 376.2-2009 communication protocol of an electricity consumption information acquisition system for power users: concentrator local communication module interface protocol ".

The carrier module socket is a 2-13 straight pin double-row female socket.

The Bluetooth conversion circuit is an HC-06 Bluetooth serial port transparent transmission module, converts a Bluetooth signal into an asynchronous serial communication signal by adopting a Bluetooth 2.0 protocol, has a 3.3VTTL level and a communication rate of 9600bit/s, and comprises 8 data bits, 1 start bit '0', 1 parity bit P and 1 stop bit '1'.

The detection distance between the improved handheld meter reading controller and the electric energy meter is not more than 10cm, and the normal wireless communication is ensured.

The smart phone is a millet 8 smart phone.

Compared with the prior art, the utility model beneficial effect lie in:

according to the low-voltage power line carrier communication wireless detection device, the special copying and controlling software is arranged on the smart phone, the smart phone is used for replacing the general software and hardware part of the existing special copying and controlling device, and the special copying and controlling software and the general software and hardware part work together with the matched improved handheld copying and controlling device, so that the operation and maintenance cost is greatly reduced; when the field detection is realized, the smart phone is in wireless control connection with the improved handheld copy controller through a Bluetooth channel, a USB (universal serial bus) line and an RS232 line do not need to be connected on the field, and the assembly and the connection are very convenient; the worker does not need to directly contact the strong current wiring by hands, so that the safety is greatly improved; the carrier module socket is arranged on the improved handheld super-controller, field detection can be matched with various carrier schemes, a set of detection device can be used for detecting all different carrier modules in a covering manner, the detection range is expanded, and the universality is strong; the cost is greatly reduced because the special handheld copy controllers which are expensive and produced by various manufacturers are not needed to be purchased and used one by one. The problems that in the prior art, a strong current connecting wire needs to be manually and directly contacted, a matched device needs to be carried and connected, detection can be carried out, and corresponding special reading and controlling devices can be used only one by one, so that the price is high, the operation is troublesome, and the acquisition cost and the operation and maintenance cost are high are solved.

Drawings

FIG. 1 is a schematic structural diagram of an operating principle of a low-voltage power line carrier communication wireless detection device;

FIG. 2 is a schematic view of a connection structure between a carrier module socket and a Bluetooth conversion circuit;

FIG. 3 is a front view of an improved handheld copy control;

FIG. 4 is a side view of an improved hand-held copy control;

fig. 5 is a rear view of a downlink carrier module;

fig. 6 is a side view of a downlink carrier module;

FIG. 7 is a schematic connection diagram of the improved handheld copy controller with a downlink carrier module;

fig. 8 is a schematic circuit diagram of a downlink communication mode of a carrier module of a conventional concentrator;

fig. 9 is a schematic circuit structure diagram of an uplink communication mode of a carrier module of a conventional electric energy meter;

FIG. 10 is a schematic view of the working principle of a conventional dedicated handheld copy controller;

FIG. 11 is a schematic view of the working principle of the conventional multifunctional handheld copy controller;

fig. 12 is a schematic view of a connection flow between the improved handheld copy controller and the existing dedicated handheld copy controller and the electric energy meter.

Detailed Description

The following describes embodiments of the low voltage power line carrier communication wireless detection device in further detail with reference to the accompanying drawings (see fig. 1 to 11):

the low-voltage power line carrier communication wireless detection device is composed of a smart phone, special copying and controlling software installed on the smart phone and an improved handheld copying and controlling device, wherein the smart phone is a millet 8 smart phone and has a Bluetooth function, and the special copying and controlling software has a Bluetooth connection communication function, a Bluetooth transmitting and copying and controlling instruction function and a receiving and answering decoding function; the instruction coding and decoding of the special copy control software adopts a Q/GDW 376.2-2009 communication protocol of an electricity consumption information acquisition system for power users: concentrator local communication module interface protocol ";

(the special copying control software is self-programming software, copyright protection of computer software is applied, and the name of the copyright of the computer software of the special copying control software is Bluetooth wireless carrier copying controller).

The improved handheld copy controller is based on the existing multifunctional handheld copy controller, an intelligent mobile phone is adopted to replace the existing multifunctional handheld copy controller, the improved handheld copy controller is adopted to replace a carrier converter, wireless transmission is carried out between the improved handheld copy controller and the carrier converter through a Bluetooth conversion circuit, and a USB converter, an RS232 converter and the carrier converter are not required to be purchased and carried; a power carrier signal transmission line of a carrier converter matched with the multifunctional handheld copying controller is eliminated; the improved handheld copy controller adopts carrier wireless transmission without a carrier signal transmission line; effectively reduces the cost and is convenient to operate.

The carrier module socket is a 2 x 13 straight pin double-row female socket, can be matched, plugged and connected with different downlink carrier modules, and can be inserted into different downlink carrier modules of different manufacturers for field detection; the battery power line is connected with the charging socket; the battery power line is connected with the communication interfaces GND and VDD pin of the carrier module socket through the power switch, is connected with the inserted weak current communication interfaces GND and VDD pin of the downlink carrier module and provides a 12V working power supply for the weak current communication interfaces GND and VDD pin; the 12V input end of the voltage reduction module is connected with the battery through the power switch, the output end of the voltage reduction module is connected with a communication interface V3P pin of the carrier module socket and is connected with a receiving pin of a low-current communication interface V3P of the inserted downlink carrier module, and the output end of the voltage reduction module is simultaneously connected with a Bluetooth conversion circuit VDD to provide a 3.3V working power supply for the Bluetooth conversion circuit and the inserted downlink carrier module; the voltage reduction module and the Bluetooth module GND are connected with the battery GND; a serial port transmitting line TXD of the Bluetooth conversion circuit is connected with a receiving pin of a communication interface RXD of the carrier module socket and is connected with a receiving pin of an inserted weak current communication interface RXD of the downlink carrier module; a serial port receiving line RXD of the Bluetooth conversion circuit is connected to a TXD transmitting pin of a carrier module socket and is connected with a TXD transmitting pin of an inserted downlink carrier module weak current communication interface; the Bluetooth signal is converted into a carrier module weak current communication signal through the Bluetooth conversion circuit, and the Bluetooth conversion circuit is connected and communicated with the special copying control software of the smart phone through Bluetooth.

The improved handheld meter reading controller adopts a general protocol specified by a national power grid, is connected to a weak current communication interface of the downlink carrier module, converts the carrier communication protocol by the downlink carrier module, can completely simulate a concentrator, is compatible with any carrier scheme, and realizes the universality of field detection. The detection distance between the improved handheld meter reading controller and the electric energy meter is not more than 10cm, and normal communication can be guaranteed.

The working process of the low-voltage power line carrier communication wireless detection device is as follows:

during working, a worker stands in front of the electric energy meter, inserts a downlink carrier module consistent with an electric energy meter carrier manufacturer into a carrier module socket, opens a power switch of the improved handheld copying controller, enables the downlink carrier module inserted into the improved handheld copying controller to be close to the electric energy meter carrier module, the distance is not more than 10cm, then opens special copying control software of the smart phone, enables the smart phone and the improved handheld copying controller to establish Bluetooth connection through a Bluetooth channel, clicks a required copying control instruction in a plurality of copying control instructions after the smart phone and the handheld copying controller are successfully connected, and the copying control instruction adopts a Q/GDW 376.2-2009 communication protocol of an electric power user electricity consumption information acquisition system: concentrator local communication module interface protocol code, the instruction is sent to the bluetooth conversion circuit of the improved hand-held copy controller by the bluetooth of the smart phone and converted into asynchronous serial communication signal, and is communicated with the downlink carrier module weak current communication interface by the carrier module socket, after the downlink carrier module receives the instruction, the instruction is converted into carrier instruction in the carrier communication module, and is sent out by the carrier amplifying circuit and the carrier coupling circuit in the carrier communication module through the carrier plug, at the moment, the electric energy meter close to the improved hand-held copy controller receives the instruction signal and makes corresponding response, then the response signal is transmitted by the path reverse to the path and is received by the special copy control software of the smart phone, the special copy control software decodes the received signal and displays the decoded signal on the screen of the smart phone, and (4) the worker judges whether the carrier module of the electric energy meter is normal or not, and the whole operation process of one-time carrier module detection is completed. (see fig. 1, 2);

(for example, DL/T698.45-2017 electric energy information collection and management system 4-5 part communication protocol oriented object data exchange protocol) can be realized by the wireless detection device of low voltage power line carrier communication through the special software upgrading.

The utility model discloses low pressure power line carrier communication wireless detection device has following advantage:

1) the use is safe, and the staff does not need direct contact forceful electric power wiring, has improved the security.

2) The intelligent handheld copying controller has the advantages that the intelligent mobile phone is low in cost, partial functions of the existing multifunctional handheld copying controller are replaced by the intelligent mobile phone, the intelligent mobile phone and the improved handheld copying controller work cooperatively, used elements are reduced, a USB (universal serial bus) and RS232 converter and a carrier converter do not need to be purchased and carried in field detection, a USB line and an RS232 line do not need to be connected in field, and therefore operation and maintenance cost is greatly reduced.

3) The universality is strong, and when the field detection is carried out, the detection can be carried out on different carrier modules produced by all manufacturers only by replacing and inserting the downlink carrier modules of different manufacturers on the carrier module socket.

The design idea of the applicant of the utility model is as follows:

at present, a low-voltage power line carrier communication mode is generally adopted for collecting data of a low-voltage electric energy meter. The utility model discloses the applicant works in national grid county level city power supply area throughout the year, in daily fortune dimension, the staff often needs to use the special use to the scene to hand the good or bad of copying accuse ware and detecting low pressure electric energy meter carrier module, because the carrier module diverse of each manufacture factory production, the carrier scheme of each producer must correspond and use respective special use to hand the accuse ware of copying, there are a plurality of carrier schemes simultaneously and just need purchase a plurality of special uses and hand the accuse ware of copying, consequently, it can not be general to have the special use to hand the accuse ware of copying to hand the present, it is very troublesome to lead to the actual detection operation, and it is expensive to hand the accuse ware price of copying specially, the purchase cost is very high, this is to county level power supply enterprise, greatly increased fortune dimension cost, uneconomic. In addition, the live wire and the zero line of the carrier circuit are connected by directly contacting the strong electric binding post with hands during field detection, so that the operation is unsafe. In addition, the existing multifunctional handheld meter reading controller needs to be connected with a carrier converter for detection, and meanwhile, a USB (universal serial bus), an RS232 converter and the carrier converter need to be purchased and carried, and the multifunctional handheld meter reading controller needs to be connected with the carrier converter after arriving at the site, so that the burden of workers is increased, and the use is inconvenient.

The applicant of the utility model discovers that the first point is: the communication between the general software and hardware of the existing special handheld copy controller and the carrier weak current interface is realized by adopting an asynchronous serial communication interface at present, the carrier weak current interface is an asynchronous serial communication interface, the software part of the existing special handheld copy controller adopts a single chip microcomputer or PDA to run software, and then the software is connected and communicated with the carrier weak current interface in a mode of USB-to-serial port circuit and the like.

The second point is that: the protocol conversion between carrier weak current and carrier strong current is that the price of the current general downlink carrier module is two hundred yuan per chip, so that a manufacturer generally selects a carrier conversion chip special for a copy controller produced by the manufacturer from comprehensive consideration of cost, cost performance and economic benefit, and does not want to be compatible with carrier schemes of other manufacturers, so as to reduce cost and increase benefit.

The utility model discloses the applicant is to the first point, considers that can installation software as long as the way of thinking to just having gone on asynchronous serial communication with the weak current interface of carrier wave, smart mobile phone staff personnel everyone has, can adopt smart mobile phone installation software, and asynchronous serial communication can adopt bluetooth to change the serial ports, has not only realized the communication with the weak current interface of carrier wave, has still cancelled the line. Aiming at the second point, a method is needed to realize the conversion between software and a carrier manufacturer protocol, and the existing special copy controller adopts a special carrier module designed by a manufacturer, so that the existing special copy controller has the advantages of small size and low cost, but is difficult for outsiders to purchase. In consideration of the universal downlink carrier module used on the concentrator, the universal downlink carrier module is easily obtained by workers, can be detached from the waste concentrator for utilization, and is determined to be adopted, and a plug-in structure is adopted, so that not only is the conversion of a carrier protocol realized, but also the universality is realized.

(see fig. 8, 9, 10, 11):

the existing downlink communication mode structure of the concentrator carrier module (see fig. 8): the weak current communication interface of the downlink carrier module is connected with the communication interface of the concentrator through a plug, the hardware communication between the two is an asynchronous serial communication interface, and the software is a Q/GDW 376.2-2009 communication protocol of a power consumer electricity consumption information acquisition system: concentrator local communication module interface protocol ", the carrier module converts concentrator instruction into carrier module producer's instruction, connects the power line terminal through the carrier interface, sends to the power line. The concentrator can be adapted to downlink carrier modules of carrier schemes of different manufacturers, and weak current communication interfaces of the concentrator are required to conform to a communication protocol of a power consumer electricity utilization information acquisition system of Q/GDW 376.2-2009: concentrator local communication module interface protocol "standard.

The existing electric energy meter carrier module uplink communication mode circuit structure (see fig. 9): the carrier module weak current communication interface is connected with the electric energy meter communication interface, the hardware adopts an asynchronous serial communication interface, the software adopts a DL645-2007 multifunctional electric energy meter communication protocol, the carrier interface of the carrier module is connected with the electric energy meter carrier interface, the electric energy meter carrier interface is internally connected on a power line binding post, the carrier module converts an instruction of a carrier module manufacturer receiving the carrier interface into a DL645-2007 multifunctional electric energy meter communication protocol instruction, and the carrier module weak current communication interface is connected with the electric energy meter communication interface for communication. The electric energy meter can be adapted to uplink carrier modules of carrier schemes of different manufacturers, and weak current communication interfaces of the electric energy meter are required to meet the standard of DL645-2007 multifunctional electric energy meter communication protocol.

The working principle structure of the existing special handheld copy controller (see fig. 10): connecting two carrier signal transmission lines of the special handheld meter reading and controlling device to a phase line and a zero line of the electric energy meter by using an insulating wire clamp so as to communicate a carrier signal communication loop; the special handheld meter reading controller is provided with special test software and a carrier module, the software sends a specific reading signal, the carrier module converts the specific reading signal into a carrier signal, the carrier signal is sent to the electric energy meter through a carrier signal transmission line, a response signal of the electric energy meter is detected, and whether the carrier module is damaged or not is judged according to the response signal.

The existing multifunctional handheld meter reading controller with infrared, RS485 and RS232 interfaces has a working process (see figure 11) when an electric energy meter carrier module needs to be detected on site: after a worker clicks an instruction on the multifunctional handheld copying controller, the installed copying controller software starts to work, a USB interface is connected with a USB and RS232 converter, a converted RS232 signal is connected with an RS232 interface of a carrier converter, the carrier signal converted by the carrier converter is connected to a power line wiring terminal of the electric energy meter through a carrier signal transmission line, and the carrier signal is transmitted to a carrier module on the electric energy meter through a power line.

In summary, the applicant of the present invention has found that the above-mentioned prior art has the following disadvantages:

firstly, when the wiring is needed, and the field detection is carried out, the carrier signal wire insulating wire clamp of the special handheld copying controller needs to be clamped on a binding post of a strong electric circuit by a worker, so that the use is very unsafe; in the second multifunctional handheld copying controller, a worker needs to purchase and carry the USB and RS232 converter and the carrier converter, and needs to connect the USB line and the RS232 line on site, so that the operation is complex and the purchase cost is high;

secondly, the special multifunctional handheld copy controller needs a processor, a display screen, software and the like, and a carrier converter is added, so that one set needs more than ten thousand, the price is high, and the operation and maintenance cost is high;

thirdly, the special handheld copy controller is not universal, and because the carrier scheme of each manufacturer must use the special handheld copy controller produced by the manufacturer one to one, when a plurality of carrier schemes exist simultaneously, a plurality of special handheld copy controllers need to be purchased; greatly increasing the cost, being inconvenient to use and having poor adaptability.

Therefore, the utility model discloses the applicant develops a low pressure power line carrier communication wireless detection device, adopts the special software of checking and controlling of installing autonomic programming in the smart mobile phone, replaces the partial function of special handheld ware of checking and controlling, connects the carrier module socket through bluetooth converting circuit, provides working power for the device through battery, switch; the power carrier transmission line of the existing multifunctional handheld copy controller is eliminated. Avoid manual contact forceful electric power terminal line, detect easy operation is convenient, and is safe in utilization.

The utility model discloses the applicant considers, the carrier frequency that adopts among the present power consumption information acquisition system low pressure carrier communication is between 132KHz to 455KHz, according to long wave communication definition for below 300KHz, the carrier frequency is close to this, consequently, carrier signal still has certain wireless communication ability except accessible power line transmission, only because the carrier module does not require to design according to wireless communication, so wireless communication's distance is very short, consequently the utility model discloses the applicant has made the testing test at the scene, draws the conclusion through many times of actual detection, goes upward when measuring distance between the carrier module when concentrator down carrier module and electric energy meter is not more than 10CM, can normal communication, can cancel former power line carrier signal transmission line completely to need not manual direct contact forceful electric power wiring stake, guarantee detection operation safety.

The intelligent mobile phone is adopted to replace the function of the universal software and hardware part of the special handheld copying controller. And installing special copy control software for autonomous programming on the smart phone. The special handheld controller of checking the book can be divided into two parts of general software and hardware and the special software and hardware of carrier wave, the part of general software and hardware, overall structure and principle are highly similar with the smart mobile phone, generally adopt tall and erect operating system of ann or Linux operating system, and the hardware adopts the ARM treater, and the coding and the software of decoding of its above-mentioned installation electric energy meter communication protocol are used for receiving and dispatching the instruction. The special carrier software and hardware part adopts a special manufacturer coding and decoding chip and a carrier modulation transceiving circuit. An asynchronous serial communication interface is adopted between the two. Therefore, the special copying and controlling software is only needed to be installed on the smart phone, and the instruction signal of the special copying and controlling software is converted into an asynchronous serial communication signal, so that the special copying and controlling software can be communicated with the carrier wave special hardware.

And the asynchronous serial communication connection between the special handheld copy controller and the carrier converter is cancelled, and wireless transmission is realized through a Bluetooth conversion circuit. The smart phone generally has a Bluetooth function, and a conversion circuit of a Bluetooth signal and a TTL level asynchronous serial communication signal is mature, so that physical connection can be replaced conveniently and at low cost.

The improved handheld copy controller adopts a general protocol to replace a special protocol of the existing special handheld copy controller (see fig. 12), and in the existing structure: a Q/GDW 376.2-2009 communication protocol of a power consumer electricity utilization information acquisition system is adopted between the concentrator and a downlink carrier module weak current communication interface: concentrator local communication module interface protocol "; a carrier module manufacturer special protocol is adopted between the carrier communication interfaces of the downlink carrier module and the uplink carrier module, and a DL645-2007 multifunctional electric energy meter communication protocol is adopted between the weak current communication interface of the uplink carrier module and the electric energy meter.

Present special handheld accuse ware of copying adopts the special agreement of producer, connects before going upward carrier module, through power line carrier with go upward carrier module communication, the utility model discloses the weak current communication interface at down carrier module is connected to the handheld accuse ware of copying of improved generation, adopts unified general state net to stipulate agreement communication, by down carrier module conversion carrier protocol, realizes carrier producer independence, and its essence simulates the concentrator completely, can compatible any carrier scheme, and the commonality is strong.

The low-voltage power line carrier communication wireless detection device is manufactured and molded in a small amount at present, is put into practical field detection application, is convenient and smooth to operate, is safe and reliable to use, and is low in manufacturing cost and high in detection efficiency compared with the existing multifunctional handheld copying controller.

The above description is only a preferred embodiment of the present invention, and the above illustration does not limit the essence of the present invention in any form, and any simple modification or variation of the above embodiments based on the technical essence of the present invention and equivalent embodiments which may be changed or modified to equivalent variations by using the technical essence of the present invention by those of ordinary skill in the art after reading the present description still belong to the technical solution of the present invention without departing from the essence and scope of the present invention.

Claims (5)

1. The utility model provides a low pressure power line carrier communication wireless detection device, it is by smart mobile phone, special use copy accuse software and the handheld accuse ware that copies of improved generation constitutes which characterized in that: the smart phone is internally provided with special copying and controlling software, and the special copying and controlling software has a Bluetooth connection communication function, a Bluetooth transmitting and copying instruction function and an answer decoding function; the improved handheld copying controller is provided with a Bluetooth conversion circuit, a carrier module socket, a battery, a power switch, a voltage reduction module and an asynchronous serial communication interface communication line; the smart phone is wirelessly connected with a Bluetooth conversion circuit of the improved handheld copying controller through a Bluetooth channel; the carrier module socket is mounted on the upper part of the front surface of the improved handheld copying controller and can be matched, plugged and connected with different downlink carrier modules; the battery power line is connected with the charging socket; the battery power line is connected with the communication interfaces GND and VDD pin of the carrier module socket through the power switch, is connected with the inserted weak current communication interfaces GND and VDD pin of the downlink carrier module and provides a 12V working power supply for the weak current communication interfaces GND and VDD pin; the 12V input end of the voltage reduction module is connected with the battery through the power switch, the output end of the voltage reduction module is connected with a communication interface V3P pin of the carrier module socket and is connected with a receiving pin of a low-current communication interface V3P of the inserted downlink carrier module, and the output end of the voltage reduction module is simultaneously connected with a Bluetooth conversion circuit VDD to provide a 3.3V working power supply for the Bluetooth conversion circuit and the inserted carrier module; the voltage reduction module and the Bluetooth module GND are connected with the battery GND; a serial port transmitting line TXD of the Bluetooth conversion circuit is connected with a receiving pin of a communication interface RXD of the carrier module socket and is connected with a receiving pin of an inserted weak current communication interface RXD of the downlink carrier module; a serial port receiving line RXD of the Bluetooth conversion circuit is connected to a TXD transmitting pin of a carrier module socket and is connected with a TXD transmitting pin of an inserted downlink carrier module weak current communication interface; the improved handheld copying controller adopts a general protocol specified by a national power grid, is connected with a weak current communication interface of a downlink carrier module, adopts the downlink carrier module to convert a carrier communication protocol, can completely simulate a concentrator, can be compatible with any carrier scheme by replacing the downlink carrier module, and realizes field detection universality.

2. The wireless detection device for low-voltage power line carrier communication according to claim 1, wherein: the carrier module socket is a 2-13 straight pin double-row female socket.

3. The wireless detection device for low-voltage power line carrier communication according to claim 1, wherein: the Bluetooth conversion circuit is an HC-06 Bluetooth serial port transparent transmission module, converts a Bluetooth signal into an asynchronous serial communication signal by adopting a Bluetooth 2.0 protocol, has a 3.3VTTL level and a communication rate of 9600bit/s, and comprises 8 data bits, 1 start bit '0', 1 parity bit P and 1 stop bit '1'.

4. The wireless detection device for low-voltage power line carrier communication according to claim 1, wherein: the detection distance between the improved handheld meter reading controller and the electric energy meter is not more than 10cm, and the normal wireless communication is ensured.

5. The wireless detection device for low-voltage power line carrier communication according to claim 1, wherein: the smart phone is a millet 8 smart phone.

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