CN203055147U - Meter reading collector with switching power supply and power line carrier transceiving gain - Google Patents
Meter reading collector with switching power supply and power line carrier transceiving gain Download PDFInfo
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- CN203055147U CN203055147U CN 201220489995 CN201220489995U CN203055147U CN 203055147 U CN203055147 U CN 203055147U CN 201220489995 CN201220489995 CN 201220489995 CN 201220489995 U CN201220489995 U CN 201220489995U CN 203055147 U CN203055147 U CN 203055147U
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Abstract
The utility model discloses a meter reading collector with a switching power supply and power line carrier transceiving gain. The meter reading collector comprises a main controller and a switching power supply circuit, wherein the main controller is connected with an RS485 transceiving circuit, a power line carrier transceiving circuit, an infrared transceiving circuit and an LED (Light Emitting Diode) indicator light circuit respectively, the RS485 transceiving circuit is in communication with an RS485 electric meter to realize the collection of metering reading operation data information, the power line carrier transceiving circuit is in power line carrier communication with a remote concentrator, the infrared transceiving circuit is used for providing an infrared interface so as to facilitate the infrared setting and reading of the collector, and the LED indicator light circuit is used for displaying a work state of the collector. The metering reading collector aims at providing reliable voltage and sufficient power for the switching power supply, and a power amplification circuit is additionally arranged on the power line carrier transceiving circuit, so that the carrier communication distance is long and accurate, and the remote meter reading operation and data transmission are finished well.
Description
[technical field]
The utility model relates to the PLC technology field, particularly the reading meter collection machine of a kind of belt switch power supply and power carrier transmitting-receiving gain.
[background technology]
Along with the development of urban construction, the residential quarter scale enlarges day by day, and the operation of checking meter becomes distinct issues gradually.At present, the operation of checking meter is generally by manual record, and it is wasted time and energy, the management trouble.In addition, also have and adopt remote technology to check meter, in existing long-distance meter-reading system, when data collection point for a long time, the distance between each data collection point and the control center, adopt power line carrier to transmit data, but because interference ratio is more serious on the line of electric force, make that power carrier normal communication distance is closer, the distant place of distance between ammeter and ammeter, the speed of checking meter and reliability are not high, even copy less than table.
The shortcoming summary of existing power carrier acquisition device has as follows:
1, generally use Industrial Frequency Transformer to add linear power supply and power, under the equal volume, the power ratio that can provide is lower, and when power carrier sent, voltage generally can reduce, and makes the emissive power deficiency, thereby makes communication distance not far.
2, power carrier sends and receives and only relies on carrier chip, does not do pre-amplification circuit, makes emissive power and receiving sensitivity all not perform to maximum, thereby uses communication distance not far.
[utility model content]
The utility model has overcome the deficiency of above-mentioned technology, the reading meter collection machine of a kind of belt switch power supply and power carrier transmitting-receiving gain is provided, it is as the link bridge of remote concentrator and ammeter, provide reliable voltage and enough power by Switching Power Supply, by increasing power amplification circuit at the power carrier transmission circuit, realize that the carrier communication distance becomes farther and accurate, well finishes remote meter reading operation and data transmission.
For achieving the above object, the utility model has adopted following technical proposal:
The reading meter collection machine of a kind of belt switch power supply and power carrier transmitting-receiving gain, include master controller 1 and switching power circuit 6, be connected with respectively on the described master controller 1 for RS485 ammeter communication realize the checking meter RS485 transmission circuit 2 of work data information acquisition, be used for carrying out with remote concentrator the power carrier transmission circuit 3 of power carrier communication, be used for providing infrared interface to be convenient to collector is carried out infrared setting and the infrared receiving/transmission circuit 4 that reads, and the LED light circuit 5 that is used for showing the collector duty, described switching power circuit 6 includes the current rectifying and wave filtering circuit 61 that connects in turn, control circuit for pulse-width modulation 62, high-frequency transformer circuit 63, voltage-stabilizing output circuit 64, described current rectifying and wave filtering circuit 61 input end external ACs, described control circuit for pulse-width modulation 62 control signal input ends and voltage-stabilizing output circuit 64 feedback signal output terminals, master controller 1 connects, described voltage-stabilizing output circuit 64 respectively with master controller 1, RS485 transmission circuit 2, power carrier transmission circuit 3, infrared receiving/transmission circuit 4, indicator light circuit 5 connects.
Described master controller 1 adopts carrier Control chip PL3201C.
Described RS485 transmission circuit 2 includes the isolation radiating circuit 21 that is connected with master controller 1 and the RS485 bus driving circuits 23 of isolating receiving circuit 22 and being connected with the RS485 ammeter, and described isolation radiating circuit 21, isolation receiving circuit 22 all pass through RS485 bus driving circuits 23 and be connected with the communication of RS485 ammeter.
The isolation coupling circuit 33 that described power carrier transmission circuit 3 includes the power carrier transtation mission circuit 31 that is connected with master controller 1 and power carrier receiving circuit 32 and is connected with line of electric force, described power carrier transtation mission circuit 31, power carrier receiving circuit 32 are connected with isolation coupling circuit 33.
Described power carrier transtation mission circuit 31 comprises power amplification circuit 311 and coupling filter-capacitor circuit 312, described power amplification circuit 311 input ends are connected with master controller 1, and power amplification circuit 311 output terminals are connected with isolation coupling circuit 33 by coupling filter-capacitor circuit 312.
Described power carrier receiving circuit 32 includes passive bandwidth-limited circuit 321 and amplifier chip 322, described passive bandwidth-limited circuit 321 input ends are connected with isolation coupling circuit 33, passive bandwidth-limited circuit 321 output terminals are connected with amplifier chip 322 input ends, and described amplifier chip 322 signal output parts are connected with master controller 1.
Described isolation coupling circuit 33 includes isolating transformer T31 and capacitor C 44, elementary winding one end of described isolating transformer T31 is connected with the line of electric force phase line by capacitor C 44, the elementary winding other end is connected with the line of electric force zero line, isolating transformer T31 secondary winding two ends are parallel with transient voltage suppressor D45, described transient voltage suppressor D45 one end is connected with power carrier transtation mission circuit 31, power carrier receiving circuit 32, transient voltage suppressor D45 other end ground connection.
Described infrared receiving/transmission circuit 4 includes for the infrared receiving terminal 41 that receives extraneous infrared signal, is used for to infrared transmission pipe 42 and the triode Q51 of external world's transmission infrared signal, described infrared receiving terminal 41 signal output parts are connected with master controller 1, and described infrared transmission is managed 42 control signal input ends and is connected with master controller 1 by triode Q51.
The beneficial effects of the utility model are:
1, can provide reliable voltage and enough power by switching power circuit, by increasing power amplification circuit at the power carrier transmission circuit, realize that the carrier communication distance becomes farther and accurate, well finishes remote meter reading operation and data transmission.
2, use Switching Power Supply, saved heavy Industrial Frequency Transformer and make volume and weight that in various degree minimizing be arranged, alleviate.
[description of drawings]
Fig. 1 is block diagram of the present utility model.
Fig. 2 is main controller circuit figure of the present utility model.
Fig. 3 is RS485 transmission circuit circuit diagram of the present utility model.
Fig. 4 is power carrier transmission circuit circuit diagram of the present utility model.
Fig. 5 is infrared receiving/transmission circuit figure of the present utility model.
Fig. 6 is LED light circuit figure of the present utility model.
Fig. 7 is switching power circuit circuit diagram of the present utility model.
[embodiment]
Be described in further detail below in conjunction with accompanying drawing and embodiment of the present utility model:
As shown in Figure 1, the reading meter collection machine of a kind of belt switch power supply and power carrier transmitting-receiving gain, include master controller 1 and switching power circuit 6, be connected with respectively on the described master controller 1 for RS485 ammeter communication realize the checking meter RS485 transmission circuit 2 of work data information acquisition, be used for carrying out with remote concentrator the power carrier transmission circuit 3 of power carrier communication, be used for providing infrared interface to be convenient to collector is carried out infrared setting and the infrared receiving/transmission circuit 4 that reads, and the LED light circuit 5 that is used for showing the collector duty, described switching power circuit 6 includes the current rectifying and wave filtering circuit 61 that connects in turn, control circuit for pulse-width modulation 62, high-frequency transformer circuit 63, voltage-stabilizing output circuit 64, described current rectifying and wave filtering circuit 61 input end external ACs, described control circuit for pulse-width modulation 62 control signal input ends and voltage-stabilizing output circuit 64 feedback signal output terminals, master controller 1 connects, described voltage-stabilizing output circuit 64 respectively with master controller 1, RS485 transmission circuit 2, power carrier transmission circuit 3, infrared receiving/transmission circuit 4, indicator light circuit 5 connects.
As shown in Figure 3, described RS485 transmission circuit 2 is used for realizing checking meter the work data information acquisition with the communication of RS485 ammeter, it includes the isolation radiating circuit 21 that is connected with master controller 1 and isolates receiving circuit 22, and the RS485 bus driving circuits 23 that is connected with the RS485 ammeter, the visit information of controller 1 is by isolating the optocoupler E32 in the radiating circuit 21, behind the triode Q30, be communicated to the RS485 ammeter by RS485 bus driving circuits 23 again, the RS485 ammeter responds, its data message is by behind the RS485 bus driving circuits 23, feed back to controller 1 by the optocoupler E33 that isolates in the receiving circuit 22 again, thereby realize the operation communication of checking meter to the RS485 ammeter.
As shown in Figure 2, described master controller 1 is responsible for reception from the data message of RS485 transmission circuit 2 and is uploaded data message and give remote concentrator, adopting carrier Control chip model at master controller described in the utility model 1 is PL3201C, embedded enhancement mode 8051 compatible microprocessors of this chip, built-in spread spectrum communication modulation/demodulation circuit, compatible PL3105 communication modes, generate power carrier signal and output to power carrier transtation mission circuit 31, the carrier signal that receives remote concentrator by power carrier receiving circuit 32 is input to PL3201C and carries out demodulation.This chip is responsible on the carrier channel protocol processes of data on the data and RS485 passage, and data on the carrier channel and the data on the RS485 passage are changed mutually, as the link bridge of concentrator and ammeter, realizes the remote meter reading operation.
As shown in Figure 4, the isolation coupling circuit 33 that described power carrier transmission circuit 3 includes the power carrier transtation mission circuit 31 that is connected with master controller 1 and power carrier receiving circuit 32 and is connected with line of electric force, described power carrier transtation mission circuit 31, power carrier receiving circuit 32 are connected with isolation coupling circuit 33.
Aforesaid power carrier transtation mission circuit 31 includes power amplification circuit 311 and coupling filter-capacitor circuit 312, described power amplification circuit 311 uses two pairs of compound transistors, form push-pull power amplifier circuit, and cooperation coupling filter-capacitor circuit 312, make the square-wave signal of master controller 1 output after power amplification, convert the similar sinusoidal signal smoother, that Frequency spectrum ratio is more single to, and output on the line of electric force by isolation coupling circuit 33.
Aforesaid power carrier receiving circuit 32 includes passive bandwidth-limited circuit 321 and amplifier chip 322, the chip model that adopts at the chip of amplifier described in the utility model 322 is SGM8621, the power carrier signal that described passive bandwidth-limited circuit 321 input ends receive from remote concentrator on the line of electric force by isolation coupling circuit 33, signal is through being input to after passive bandwidth-limited circuit 321 frequency-selectings at a high speed, the high-gain track to track amplifier SGM8621 of low noise amplifies, amplitude limit, from disturbing bigger line of electric force to filter out fainter power carrier communication signal, be input to master controller 1 and carry out demodulation.
As shown in Figure 5, described infrared receiving/transmission circuit 4 includes for the infrared receiving terminal 41 that receives extraneous infrared signal, is used for to infrared transmission pipe 42 and the triode Q51 of external world's transmission infrared signal, described infrared receiving terminal 41 signal output parts are connected with master controller 1, described infrared transmission is managed 42 control signal input ends and is connected with master controller 1 by triode Q51, the infrared setting of realization collector and reading.
As shown in Figure 6, described LED light circuit 5 is made up of LED lamp and resistance, shows the various states of current collector work by master controller 1 control LED lamp break-make.
As shown in Figure 7, described switching power circuit 8 provides reliable voltage and enough power for collector.
Described control circuit for pulse-width modulation 62 includes the control circuit that power management chip 621, optocoupler 822 and triode Q11 become, the model that the utility model power management chip 621 adopts is TNY275PN, master controller 1 is by the output of triode Q11, optocoupler 622, power management chip 621 control high-frequency transformer circuit 63 voltages, and described power management chip 621 output control terminals are connected with high-frequency transformer circuit 63 input ends.
Described high-frequency transformer circuit 63 includes transformer T61 and transformer T62, the elementary winding of described transformer T61 is connected with control circuit for pulse-width modulation 62, the transformer T61 first secondary winding output terminal is connected with the elementary winding of transformer T62, transformer T61 output terminal is by the linear voltage stabilization of the three terminal regulator 641 in the voltage-stabilizing output circuit 64, provides stable 5V direct supply VCC-485 to RS485 transmission circuit 2; Transformer T61 second subprime winding output terminal by the filtering voltage regulation of diode D13, capacitor C 14, inductance L 09, capacitor C 15 after output voltage V HH offer power carrier transmission circuit 3; Aforesaid transformer T61 second subprime winding output terminal feeds back signal to control circuit for pulse-width modulation 62, when not launching carrier wave, output voltage V HH is in lower current potential, the utility model is arranged on 8V, and in the time of needs emission carrier wave, master controller 1 is by control circuit for pulse-width modulation 62 control high-frequency transformer circuit 63, improve the level size of output voltage V HH, the utility model is arranged on 15V, thereby provides reliable voltage and enough power for power carrier transtation mission circuit 31; Also by connecting three terminal regulator 642, VCC powers for the VCC leads ends of master controller 1, power carrier receiving circuit 32, infrared receiving/transmission circuit 4 to described output voltage V HH end points by linear voltage stabilization output 5V voltage; The model that adopts in this case of three terminal regulator 641 and three terminal regulator 642 is 78L05 as mentioned above.
The model of the above components and parts is not as the restriction to the utility model protection domain; what the utility model was protected is the reading meter collection machine structure of a kind of belt switch power supply and power carrier transmitting-receiving gain; it provides reliable voltage and enough power by Switching Power Supply; by increasing power amplification circuit at the power carrier transmission circuit; realize that the carrier communication distance becomes farther and accurate; well finish remote meter reading operation and data transmission, all should be shown in the protection domain that falls into this case according to the designed product that goes out of the technical program or technology enlightenment.
Claims (8)
1. the reading meter collection machine of a belt switch power supply and power carrier transmitting-receiving gain, it is characterized in that including master controller (1) and switching power circuit (6), be connected with respectively on the described master controller (1) for RS485 ammeter communication realize the checking meter RS485 transmission circuit (2) of work data information acquisition, be used for carrying out with remote concentrator the power carrier transmission circuit (3) of power carrier communication, be used for providing infrared interface to be convenient to collector is carried out infrared setting and the infrared receiving/transmission circuit (4) that reads, and the LED light circuit (5) that is used for showing the collector duty, described switching power circuit (6) includes the current rectifying and wave filtering circuit (61) that connects in turn, control circuit for pulse-width modulation (62), high-frequency transformer circuit (63), voltage-stabilizing output circuit (64), described current rectifying and wave filtering circuit (61) input end external AC, described control circuit for pulse-width modulation (62) control signal input end and voltage-stabilizing output circuit (64) feedback signal output terminal, master controller (1) connects, described voltage-stabilizing output circuit (64) respectively with master controller (1), RS485 transmission circuit (2), power carrier transmission circuit (3), infrared receiving/transmission circuit (4), indicator light circuit (5) connects.
2. the reading meter collection machine of a kind of belt switch power supply according to claim 1 and power carrier transmitting-receiving gain is characterized in that described master controller (1) adopts carrier Control chip PL3201C.
3. a kind of belt switch power supply according to claim 1 and power carrier are received and dispatched the reading meter collection machine of gain, it is characterized in that described RS485 transmission circuit (2) includes the isolation radiating circuit (21) that is connected with master controller (1) and the RS485 bus driving circuits (23) of isolating receiving circuit (22) and being connected with the RS485 ammeter, described isolation radiating circuit (21), isolation receiving circuit (22) all pass through RS485 bus driving circuits (23) and are connected with the communication of RS485 ammeter.
4. a kind of belt switch power supply according to claim 1 and power carrier are received and dispatched the reading meter collection machine of gain, it is characterized in that the isolation coupling circuit (33) that described power carrier transmission circuit (3) includes the power carrier transtation mission circuit (31) that is connected with master controller (1) and power carrier receiving circuit (32) and is connected with line of electric force, described power carrier transtation mission circuit (31), power carrier receiving circuit (32) are connected with isolation coupling circuit (33).
5. a kind of belt switch power supply according to claim 4 and power carrier are received and dispatched the reading meter collection machine of gain, it is characterized in that described power carrier transtation mission circuit (31) comprises power amplification circuit (311) and coupling filter-capacitor circuit (312), described power amplification circuit (311) input end is connected with master controller (1), and power amplification circuit (311) output terminal is connected with isolation coupling circuit (33) by coupling filter-capacitor circuit (312).
6. a kind of belt switch power supply according to claim 4 and power carrier are received and dispatched the reading meter collection machine of gain, it is characterized in that described power carrier receiving circuit (32) includes passive bandwidth-limited circuit (321) and amplifier chip (322), described passive bandwidth-limited circuit (321) input end is connected with isolation coupling circuit (33), passive bandwidth-limited circuit (321) output terminal is connected with amplifier chip (322) input end, and described amplifier chip (322) signal output part is connected with master controller (1).
7. a kind of belt switch power supply according to claim 4 and power carrier are received and dispatched the reading meter collection machine of gain, it is characterized in that described isolation coupling circuit (33) includes isolating transformer (T31) and electric capacity (C44), elementary winding one end of described isolating transformer (T31) is connected with the line of electric force phase line by electric capacity (C44), the elementary winding other end is connected with the line of electric force zero line, isolating transformer (T31) secondary winding two ends are parallel with transient voltage suppressor (D45), described transient voltage suppressor (D45) end and power carrier transtation mission circuit (31), power carrier receiving circuit (32) connects, transient voltage suppressor (D45) other end ground connection.
8. a kind of belt switch power supply according to claim 1 and power carrier are received and dispatched the reading meter collection machine of gain, it is characterized in that described infrared receiving/transmission circuit (4) includes for the infrared receiving terminal (41) that receives extraneous infrared signal, is used for to infrared transmission pipe (42) and the triode (Q51) of external world's transmission infrared signal, described infrared receiving terminal (41) signal output part is connected with master controller (1), and described infrared transmission pipe (42) control signal input end is connected with master controller (1) by triode (Q51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220489995 CN203055147U (en) | 2012-09-24 | 2012-09-24 | Meter reading collector with switching power supply and power line carrier transceiving gain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220489995 CN203055147U (en) | 2012-09-24 | 2012-09-24 | Meter reading collector with switching power supply and power line carrier transceiving gain |
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| Publication Number | Publication Date |
|---|---|
| CN203055147U true CN203055147U (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220489995 Expired - Fee Related CN203055147U (en) | 2012-09-24 | 2012-09-24 | Meter reading collector with switching power supply and power line carrier transceiving gain |
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| CN (1) | CN203055147U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103761856A (en) * | 2014-02-20 | 2014-04-30 | 国网上海市电力公司 | Data monitoring collector |
| CN105405281A (en) * | 2015-11-25 | 2016-03-16 | 国网辽宁省电力有限公司锦州供电公司 | Detection method for carrier communication failures of smart electric meter |
| CN108429567A (en) * | 2018-03-20 | 2018-08-21 | 国网浙江杭州市富阳区供电有限公司 | A kind of acquisition carrier gains terminal |
| CN108877367A (en) * | 2018-06-07 | 2018-11-23 | 杭州佳和电气股份有限公司 | A kind of emulation collector and failure simulation method suitable for emulation training |
| CN112289619A (en) * | 2020-10-21 | 2021-01-29 | 山东泰开智能配电有限公司 | Control device for grounding switch |
-
2012
- 2012-09-24 CN CN 201220489995 patent/CN203055147U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103761856A (en) * | 2014-02-20 | 2014-04-30 | 国网上海市电力公司 | Data monitoring collector |
| CN105405281A (en) * | 2015-11-25 | 2016-03-16 | 国网辽宁省电力有限公司锦州供电公司 | Detection method for carrier communication failures of smart electric meter |
| CN108429567A (en) * | 2018-03-20 | 2018-08-21 | 国网浙江杭州市富阳区供电有限公司 | A kind of acquisition carrier gains terminal |
| CN108877367A (en) * | 2018-06-07 | 2018-11-23 | 杭州佳和电气股份有限公司 | A kind of emulation collector and failure simulation method suitable for emulation training |
| CN112289619A (en) * | 2020-10-21 | 2021-01-29 | 山东泰开智能配电有限公司 | Control device for grounding switch |
| CN112289619B (en) * | 2020-10-21 | 2023-09-15 | 山东泰开智能配电有限公司 | Control device for grounding switch |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20210924 |
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| CF01 | Termination of patent right due to non-payment of annual fee |