CN105160861A - Reliable transmission device of micro-power signal and application of reliable transmission device - Google Patents
Reliable transmission device of micro-power signal and application of reliable transmission device Download PDFInfo
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- CN105160861A CN105160861A CN201510673591.3A CN201510673591A CN105160861A CN 105160861 A CN105160861 A CN 105160861A CN 201510673591 A CN201510673591 A CN 201510673591A CN 105160861 A CN105160861 A CN 105160861A
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- meter reading
- reading terminal
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- ammeter
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Abstract
The invention relates to a reliable transmission device of a micro-power signal and application of the reliable transmission device. The reliable transmission device comprises a meter reading terminal and an acquisition unit connected with the meter reading terminal, wherein the acquisition unit comprises a box body as well as two DB9 male connectors, RS232-RS485 converters and a 485 shielded line which are arranged in the box body and are connected in sequence; one DB9 male connector is connected with the meter reading terminal; and one end of the 485 shielded line is connected with an ammeter wiring port. By changing a traditional detection manner of measuring voltage and measuring on-off, 485 communication faults can be rapidly and effectively checked; and whether operation readings and operation conditions of each ammeter are normal or not is efficiently recorded and displayed through a program arranged in the meter reading terminal. The device is convenient to operate; the working efficiency is improved, and a power grid can be effectively monitored and analyzed in time; and the device has an accurate and reliable detection result and obvious effect, and is worthy of being greatly popularized.
Description
Technical field
The present invention relates to a kind of micropower signal transmitting device and application thereof, belong to electric power testing tool technical field.
Background technology
Power information is captured in Electric Power Network Planning, safety in production, operation control, electrical energy consumption analysis, emphasis user monitoring, multiplexing electric abnormality detection, oppose electricity-stealing analysis, load prediction, good service and has a wide range of applications.Actively develop power information collecting work, make great efforts to promote and gather success ratio, can reduce greatly check meter, the human cost such as charge, reduce the low voltage electric network proportion of goods damageds, take precautions against electricity charge risk, accelerate tariff recovery, have good Social benefit and economic benefit.
Needing the person of checking meter to copy to on-the-spot benefit for automatically gathering unsuccessful terminal, adding intermediate link, causing tariff recovery not in time, putting evening in storage; Cannot corresponding terminal be caused to lack the information such as voltage, electric current, active power by normal acquisition, and then electric energy metrical, Controlling line loss and anti-electricity-theft management can not be monitored in time and be analyzed.
The reason of failure of causing checking meter mainly contains archives mistake, electrical energy meter fault, 485 communication failures, wiring error and acquisition terminal fault five class fault.And 485 communication failure accountings reach 81%, for daily gathering the low main crux of success ratio.
485 communication failures typically refer to the fault that 485 connection faults or electric energy meter 485 mouthfuls of damages cause data-transmission interruptions and produce.The method of conventional identification 485 communication failure mainly " surveys voltage, amount break-make ", namely measures electric energy meter 485 port voltage with multimeter, judges order wire break-make.And a concentrator need connect multiple ammeter box, when the multiple electric energy meter collections being distributed in different ammeter box under this concentrator occur abnormal, staff need remove 485 wiring one by one, carries out signal wire break-make investigation one by one, waste time and energy with multimeter.Particularly in platform district, rural area, electric energy meter spacing is comparatively far away, and 485 order wires lay need by low-voltage line bar, and bring difficulty to line inspection work, the used time is longer.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of micropower signal transmitting device.
The present invention also provides the using method of above-mentioned a kind of micropower signal transmitting device.
Technical scheme of the present invention is as follows:
A kind of micropower signal transmitting device, the collector comprising meter reading terminal and be connected with meter reading terminal, described collector comprises box body and is placed in two DB9 males in box body, RS232-RS485 converter and 485 shielding lines, two DB9 males adopt intersection connection to connect, one of them DB9 male is connected with meter reading terminal, another DB9 male is connected with RS232-RS485 converter one end, the other end of RS232-RS485 converter is connected with one end of 485 shielding lines, and the other end of 485 shielding lines is placed in outside box body.The present invention realizes reading and the conversion of information data by RS232-RS485 converter, and record and the display of the ammeter number of degrees is realized by the program that meter reading terminal is built-in, staff just can realize recording investigation 485 communication failure fast and effectively by meter reading terminal.
Preferably, the other end of described 485 shielding lines connects crocodile mouth insulated terminal.The benefit of this design is, adopts crocodile mouth insulated terminal to be convenient to clamp the Wiring port of ammeter, realizes connecting fast, improve investigation efficiency.
Preferably, box body has an installing port, one of them DB9 male embeds installing port and is fixedly connected on box body.
A using method for micropower signal transmitting device, comprises the following steps,
When carrying out 485 communication failures and detecting, be connected on the Wiring port of ammeter by crocodile mouth insulated terminal, meter reading terminal record also shows the number of degrees of ammeter, when ammeter the number of degrees cannot normal recordings time, then 485 communication failures, need operating personnel to change electric energy meter or 485 lines.
Beneficial effect of the present invention is:
The traditional detection mode that micropower signal transmitting device of the present invention changes " surveying voltage, amount break-make ", 485 communication failures can be fast and effeciently investigated by apparatus of the present invention, and the number of degrees record of ammeter can be carried out by hand-held meter reading terminal, can be recorded expeditiously by the program that meter reading terminal is built-in and show the operation number of degrees of each ammeter and ruuning situation whether normal.Use this device easy to operate, greatly can improve the work efficiency of maintainer, and can monitor timely and effectively electrical network and analyze, accurately and reliably, successful, be worth promoting this device testing result.
Accompanying drawing explanation
Fig. 1 is the structural representation of micropower signal transmitting device of the present invention;
Wherein: 1, box body; 2, DB9 male; 3, DB9 male; 4, meter reading terminal; 5,485 shielding lines; 6, crocodile mouth insulated terminal; 7, RS232-RS485 converter.
Embodiment
Below by embodiment, also the present invention will be further described by reference to the accompanying drawings, but be not limited thereto.
Embodiment 1:
The present embodiment provides a kind of micropower signal transmitting device, as shown in Figure 1, the collector comprising meter reading terminal 4 and be connected with meter reading terminal 4, collector comprises box body 1 and is placed in two DB9 males 2 in box body 1, 3, RS232-RS485 converter 7 and 485 shielding line 5, two DB9 males 2, 3 adopt intersection connection, and (2 connect 3, 3 connect 2, 5 connect 5) weld, box body 1 has an installing port, one of them DB9 male 3 is embedded installing port and is screwed and is connected on box body 1 and is connected with meter reading terminal 4 by 485 shielding lines, another DB9 male 2 is connected with RS232-RS485 converter 7 one end, the other end of RS232-RS485 converter 7 is connected with one end of 485 shielding lines 5, the other end of 485 shielding lines 5 is placed in outside box body 1.
RS232-RS485 converter 7 interface conversion internal circuit can automatic sensing data flow direction, automatically switches to use to control, and volume is little, long transmission distance, and speed is high.Be applicable to all existing communication software and interfaces, hardware does not need to make any software modification to the former working method based on RS-232.
Wherein, the other end of 485 shielding lines 5 connects crocodile mouth insulated terminal 6.During use, by the Wiring port of crocodile mouth insulated terminal fast clamp ammeter.
For the ease of 485 shielding line 5 terminals in fixed bin body 1, be bound to inside collector box body 1 wire casing with nylon cable tie, prevent the stressed welding position that causes of 485 shielding lines in box body from coming off.
The model selecting Beijing Zhenzhong Electronic Technology Co. Ltd. to produce in the present embodiment is the hand-hold meter reading terminal of Thinpad900, by again writing its internal processes, its built-in core supports C language programming, make they data possessing 1. copy reading intelligent meter 2. issue correlation parameter, realize the communication of hand-hold meter reading terminal and electric energy meter 485 mouthfuls.Meter reading terminal after improvement can realize instant recording and show the function of the ammeter number of degrees.
Embodiment 2:
A using method for micropower signal transmitting device, comprises the following steps,
When carrying out 485 communication failures and detecting, be connected on the Wiring port of ammeter by crocodile mouth insulated terminal, meter reading terminal record also shows the number of degrees of ammeter, when ammeter the number of degrees cannot normal recordings time, then 485 communication failures, need operating personnel to change electric energy meter or 485 lines.
Claims (4)
1. a micropower signal transmitting device, it is characterized in that, the collector comprising meter reading terminal and be connected with meter reading terminal, described collector comprises box body and is placed in two DB9 males in box body, RS232-RS485 converter and 485 shielding lines, two DB9 males adopt intersection connection to connect, one of them DB9 male is connected with meter reading terminal, another DB9 male is connected with RS232-RS485 converter one end, the other end of RS232-RS485 converter is connected with one end of 485 shielding lines, and the other end of 485 shielding lines is placed in outside box body.
2. micropower signal transmitting device as claimed in claim 1, is characterized in that, the other end of described 485 shielding lines connects crocodile mouth insulated terminal.
3. micropower signal transmitting device as claimed in claim 1, is characterized in that, box body has an installing port, and one of them DB9 male embeds installing port and is fixedly connected on box body.
4. a using method for the micropower signal transmitting device as described in any one of claim 1-3, comprises the following steps,
When carrying out 485 communication failures and detecting, be connected on the Wiring port of ammeter by crocodile mouth insulated terminal, meter reading terminal record also shows the number of degrees of ammeter, when ammeter the number of degrees cannot normal recordings time, then 485 communication failures, need operating personnel to change electric energy meter or 485 lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510673591.3A CN105160861A (en) | 2015-10-15 | 2015-10-15 | Reliable transmission device of micro-power signal and application of reliable transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510673591.3A CN105160861A (en) | 2015-10-15 | 2015-10-15 | Reliable transmission device of micro-power signal and application of reliable transmission device |
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| CN105160861A true CN105160861A (en) | 2015-12-16 |
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| CN201510673591.3A Pending CN105160861A (en) | 2015-10-15 | 2015-10-15 | Reliable transmission device of micro-power signal and application of reliable transmission device |
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| CN102435838A (en) * | 2011-10-18 | 2012-05-02 | 中国电力科学研究院 | Basic electric quantity type energy-efficiency data collecting terminal |
| CN102981069A (en) * | 2011-09-07 | 2013-03-20 | 上海久隆电力科技有限公司 | Electric energy comprehensive information acquisition terminal |
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| CN201780672U (en) * | 2010-07-27 | 2011-03-30 | 安徽中兴继远信息技术有限公司 | Centralized meter reading terminal device |
| CN102981069A (en) * | 2011-09-07 | 2013-03-20 | 上海久隆电力科技有限公司 | Electric energy comprehensive information acquisition terminal |
| CN102435838A (en) * | 2011-10-18 | 2012-05-02 | 中国电力科学研究院 | Basic electric quantity type energy-efficiency data collecting terminal |
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Application publication date: 20151216 |