CN205484765U - On --spot auxiliary detection device of smart electric meter - Google Patents
On --spot auxiliary detection device of smart electric meter Download PDFInfo
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- CN205484765U CN205484765U CN201520954138.5U CN201520954138U CN205484765U CN 205484765 U CN205484765 U CN 205484765U CN 201520954138 U CN201520954138 U CN 201520954138U CN 205484765 U CN205484765 U CN 205484765U
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Abstract
The utility model belongs to the technical field of it is electric and automatic, especially, involve a smart electric meter detection device, concretely relates to on - -spot auxiliary detection device of smart electric meter, including instructing lamp module piece, bluetooth communication module, central processing unit, RS485 interface circuit, power module, data storage module and electric quantity indicating circuit, central processing unit is connected with instructing lamp module piece, bluetooth communication module, RS485 interface circuit, data storage module, electric quantity indicating circuit and power module respectively. The utility model discloses can effectively prevent static and instantaneous limited excessive pressure, can tentatively detect smart electric meter at the scene the user under the circumstances that smart electric meter does not cut off the power supply, make things convenient for the staff to patrol and examine, the utility model discloses the wiring is simple, the low cost, and convenient operation has improved the on -the -spot detection efficiency to smart electric meter, and the department has released huge human and material resources for the measuring.
Description
Technical field
This utility model belongs to electric and technical field of automation, refers more particularly to a kind of intelligent electric meter detection device, is specifically related to a kind of intelligent electric meter scene auxiliary detection device.
Background technology
Along with the propelling of electricity market reform, the aggravation of climate change, environment regulatory requirements are increasingly strict and the up-to-date adjustment of national energy policy, electric power networks is more and more tightr with the coordination between electricity market, user and exchange, quality of power supply level requirement steps up, and development intelligent grid has become trend.The fundamental equipments that intelligent electric meter is built as intelligent grid, is the important component part of intelligent power, is to realize two-way interaction intelligent power " terminal nerve ".Intelligent electric energy meter needs directly to contact with society and user, and this is also the important channel that society carries out perception to intelligent grid construction achievement.
Along with country's requirement to intelligent grid development strategy, intelligent electric energy meter is able to obtain promotion and application widely in China；Benefit produced by intelligent electric meter and each family everyone be directly related, it can guide using electricity wisely by providing real-time power information, additionally can also pass through timesharing or step price, reduce the electricity consumption situation in peak of power consumption moment further, thus realize the target of energy-saving and emission-reduction.For ensureing the accurate metering of intelligent electric meter, need periodically intelligent electric meter to be detected.But, the quantity come into operation along with intelligent electric meter is skyrocketed through, the measuring accuracy of periodic detection intelligent electric meter and behaviour in service, become a very heavy task, owing to intelligent electric meter will configure for each family, the detection of ammeter must be arrived family and be carried out, simultaneously as detection is loaded down with trivial details, to need to put into huge manpower and detection equipment, meanwhile, the most large-scale equipment Inspection, googol will be brought according to process task simultaneously, in the case of artificial treatment, how to ensure that the preparation of data is errorless, be also a difficulty the biggest.
Utility model content
Technical problem to be solved in the utility model, this utility model provides one intelligent electric meter can be carried out initial survey and depth detection, thering is provided the on-the-spot auxiliary detection device of offline inspection data storage, to achieve these goals, the technical solution adopted in the utility model is as follows simultaneously:
A kind of intelligent electric meter scene auxiliary detection device, it is characterized in that: include indicating lamp module, bluetooth communication module, central processing unit, RS485 interface circuit, power module, data memory module and battery capacity indication circuit, described central processing unit is attached with indicating lamp module, bluetooth communication module, RS485 interface circuit, data memory module, battery capacity indication circuit and power module respectively.
Preferably, described indicating lamp module also includes electric meter fault display lamp, command mode Frame display lamp, the first transparent transmission mode agreement display lamp and the second transparent transmission mode agreement display lamp, and described electric meter fault display lamp, command mode Frame display lamp, the first transparent transmission mode agreement display lamp, the second transparent transmission mode agreement display lamp are connected with central processing unit by GPIO interface the most respectively.
Preferably; described power module includes lithium battery, charging circuit, mu balanced circuit, electric power detection protection circuit; described charging circuit is that lithium battery is charged; described mu balanced circuit is by the output voltage voltage stabilizing of lithium battery to 3.3V; described electric power detection protection circuit reads the electricity of lithium battery, and lithium battery arranges overvoltage protection and under-voltage protection.
Preferably, described central processing unit passes through I2C bus connects with power module respectively, electric power detection protection circuit is connected.
Preferably, described electric power detection protection circuit uses BQ27742-G1 chip.
Preferably, described central processing unit uses MSP430 series monolithic.
Preferably, described charging circuit uses the charge management module with USB interface；Battery current electric quantity can be judged according to lithium battery both end voltage, and then determine to use constant current or constant-voltage charge pattern, while reducing the charging interval, extend the service life of lithium battery.
Preferably, described bluetooth communication module uses the TTL of HC-08 model to turn bluetooth module；This bluetooth communication module supports BLE (the Bluetooth low energy) agreement of bluetooth 4.0, and power consumption is only the 1/10 of bluetooth 2.0.
In sum, owing to have employed such scheme, this utility model has the advantages that
(1), this utility model can effectively antistatic and instantaneous limited overvoltage, in the case of intelligent electric meter not power-off, at the scene intelligent electric meter can be carried out Preliminary detection user, staff is facilitated to patrol and examine, this utility model wiring is simple, low cost, easy to operate, improve the scene detection efficiency to intelligent electric meter, release huge human and material resources for detection department.
(2), this utility model individually can carry out Preliminary detection to intelligent electric meter, it is also possible to utilization is put bluetooth module and realized wireless interconnected with hand-held mobile terminal, coordinates mobile terminal software can realize intelligent electric meter depth detection and detects.
(4), this utility model there is off-line monitoring function and onboard data memory module, intelligent electric meter status information can be timed monitoring and history data store.
(3), this utility model for direct current supply interface, not only solve powerup issue, be simultaneously achieved wireless interconnected with intelligent electric meter of hand-held mobile terminal, and the network function of mobile terminal can be made full use of.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model example or technical scheme of the prior art, introduce accompanying drawing required in embodiment or description of the prior art is done simply below, apparently, accompanying drawing in describing below is only examples more of the present utility model, to those skilled in the art, on the premise of not paying creativeness, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic diagram of a kind of intelligent electric meter scene of the present utility model auxiliary detection device.
Fig. 2 is the bluetooth communication module schematic diagram of a kind of intelligent electric meter scene of the present utility model auxiliary detection device.
Fig. 3 is the power module schematic diagram of a kind of intelligent electric meter scene of the present utility model auxiliary detection device.
Fig. 4 is the electric power detection protection circuit schematic diagram of a kind of intelligent electric meter scene of the present utility model auxiliary detection device.
In accompanying drawing, 101-electric meter fault display lamp, 102-command mode Frame display lamp; 103 first transparent transmission mode agreement display lamps, 104-the second transparent transmission mode agreement display lamp, 105-bluetooth communication module; 106-central processing unit, 107-RS485 interface circuit, 108-power module; 109-data memory module, 110 battery capacity indication circuit, 111-charging circuit; 112-mu balanced circuit; 113-electric power detection protection circuit, 114 lithium batteries, 115-hand-held mobile terminal.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model example, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
nullAs shown in Figure 1，The present embodiment provides a kind of intelligent electric meter scene auxiliary detection device，Including indicating lamp module、Bluetooth communication module 105、Central processing unit 106、RS485 interface circuit 107、Power module 108、Data memory module 109 and battery capacity indication circuit 110，Described central processing unit 106 respectively with indicating lamp module、Bluetooth communication module 106、RS485 interface circuit 107、Data memory module 108、Battery capacity indication circuit 110 and power module 108 are attached，In this utility model，Indicating lamp module includes electric meter fault display lamp 101、Command mode Frame display lamp 102、First transparent transmission mode agreement display lamp 103 and the second transparent transmission mode agreement display lamp 104，Described electric meter fault display lamp 101、Command mode Frame display lamp 102、First transparent transmission mode agreement display lamp 103 and the second transparent transmission mode agreement display lamp 104 are connected by GPIO mouth and central processing unit 106 the most respectively，When ammeter breaks down，Electric meter fault display lamp 101 flashes；To realize communication connection between hand-held mobile terminal 115 and bluetooth communication module 105 in this utility model, communication protocol is divided into both of which, command mode and transparent transmission mode, if Frame is command mode, then command mode Frame display lamp 102 flashes once；If transparent transmission mode, if the data of transmission are DL/T 645-2007 protocol data, the first transparent transmission mode agreement display lamp 103 flashes once；Under transparent transmission mode, if the data of transmission are DL/T 645-1997 protocol data, the second transparent transmission mode agreement display lamp 104 flashes once；After bluetooth communication module 105 receives the data that hand-held mobile terminal 115 transmission comes, transfer data to central processing unit 106 by UART interface.In this utility model, described central processing unit 106 uses MSP430 series low-power scm, this series monolithic has useful abundant Peripheral Interface, its model is MSP430FR5969, and dominant frequency scalable, it is up to 16MHz, under mode of operation, is about 100uA/MHz, under standby mode, be about 0.4uA/MHz.Being in sleep pattern at ordinary times, bluetooth communication module 105 passes through UART interface after receiving data and forwards data and waken up up, performs protocol analysis and instruction, reads the operation such as intelligent electric meter status information, reading battery dump energy；Central processing unit 106 is connected with RS485 interface circuit 107 by UART interface, is connected with intelligent electric meter by RS485 interface, can realize UART interface data and turn with the mutual of RS485 interface data.
nullIn this utility model，As shown in Figure 2，Described bluetooth communication module 105 uses the TTL of HC-08 model to turn bluetooth module，Bluetooth communication module 105 supports BLE (the Bluetooth low energy) agreement of bluetooth 4.0，Power consumption is only the 1/10 of bluetooth 2.0，Hand-held mobile terminal 115 is communicatively coupled with bluetooth communication module 105，Electric current 340uA is consumed when two persons are not connected with，And communication consumes electric current 1.6mA when connecting，Bluetooth communication module 105 uses 3.3V to power，The first pin TXD and the second pin RXD of bluetooth communication module 105 connects the UART interface of central processing unit 106 and carries out data exchange，The 11st pin RESET of bluetooth communication module 105 pull-up resistor by a 4.7k Ω，It is connected with the RST pin of central processing unit 106 simultaneously.When there is internal error in bluetooth communication module 105, this pin of Single-chip Controlling one low level pulse of output, bluetooth communication module 105 is made to restart, simultaneously, external LED D9 of 24th pin PIO13 of bluetooth communication module 105, the D9 flicker when hand-held mobile terminal 115 is connected with bluetooth communication module 105, when being not connected with, D9 extinguishes.In this utility model, described RS485 interface circuit 107 uses MAX3485 that RS485 differential signal is changed into TTL signal, the described EEPROM being data memory module 109 and using model to be AT24C128C, capacity is 128kb, i.e. 16kB, if intelligent electric meter status information of storage in each hour, can the Coutinuous store historical data of month, when detection device is under off-line monitoring duty, and described data memory module 109 stores the intelligent electric meter status information read.
Described hand-held mobile terminal 115 is mobile phone or flat board, when user performs to read the operation of intelligent electric meter status information on hand-held mobile terminal 115, after receiving read command operation by bluetooth communication module 105, read intelligent electric meter status information by RS485 interface circuit 107.After the protocol data that intelligent electric meter returns is resolved by central processing unit 106, it is judged that whether ammeter is in malfunction, if being in malfunction, this display lamp 101 flashes 5s；The data that bluetooth communication module 105 is received by central processing unit 106 resolve, if this Frame is command mode data, command mode Frame display lamp 102 then flashes once；The data that bluetooth communication module 105 is received by central processing unit 106 resolve, if this Frame is transparent transmission mode data, then judge the control code field of data division in frame, and the first transparent transmission mode agreement display lamp 103 then flashes once；The data received bluetooth communication module 105 when central processing unit 106 resolve, if this Frame is transparent transmission mode data, then judge the control code field of data division in frame, and the second transparent transmission mode agreement display lamp 104 then flashes once.
nullAs shown in Figure 3，As this most preferred embodiment of the present utility model，Described power module 108 includes charging circuit 111、Mu balanced circuit 112、Electric power detection protection circuit 113 and lithium battery 114，Described charging circuit 111 is charged for lithium battery 114，Described mu balanced circuit 112 is by the output voltage voltage stabilizing of lithium battery 114 to 3.3V，Described electric power detection protection circuit 113 reads the electricity of lithium battery 114，And lithium battery 114 is arranged overvoltage protection and under-voltage protection，Described power module 108 provides power supply for other devices of this utility model detection device，Described battery capacity indication circuit 110 is made up of four LED lights，Represent the 25% of total electricity respectively，50%，75%，100%，Which can be in interval by the current electric quantity of lithium battery of simple displaying，Described power module 108 includes lithium battery 111、Charging circuit 112、Mu balanced circuit 113、Electric power detection protection circuit 114，Described charging circuit 112 charges to lithium battery 111；The voltage voltage stabilizing that lithium battery 111 is exported by described mu balanced circuit 113 is to running voltage 3.3V of device in detection device of the present utility model；Described electric power detection protection circuit 114 can read battery electric quantity, can arrange overvoltage protection, under-voltage protection threshold value simultaneously, can be applicable to the lithium battery of different size.
Described charging circuit 112 uses the charge management module with Mirco USB interface, charging characteristic curve according to lithium battery, when electric quantity of lithium battery is below 90%, use constant current charging mode, maximum current can be used, after electric quantity of lithium battery arrives 90%, 10% before using constant-voltage charge pattern, charging to be reduced to.Described charging circuit 112 uses the BQ24250 charging chip of TI company, and this chip judges battery current electric quantity according to lithium battery both end voltage, and then determines to use which kind of charge mode, extends the service life of lithium battery while reducing the charging interval.BQ24250 charging chip has input over-voltage protecting function, also can ensure safety of charging when external charger breaks down.When intelligent electric meter uses the lithium battery of 3.7V specification by detection device of the present utility model, in discharge process, voltage can be gradually lowered to 3.0V from 4.2V, and the running voltage of device is 3.3V in detection device of the present utility model, use general linear voltage stabilization chip cannot meet condition, therefore, described mu balanced circuit 113 uses the TPS63050 chip with buck/boost type switch voltage-stabilizing, this chip maximum output current is 0.5A, fully meet the wastage in bulk or weight of electronic device in device, and energy conversion efficiency is the highest, it is 95% under decompression mode, it is 90% under boost mode.When not using device can closing switch S3, save electric quantity of lithium battery.
As most preferred embodiment of the present utility model, as shown in Figure 4, described electric power detection protection circuit 113 passes through I2C bus is connected with central processing unit 106, battery electric quantity can be read, overvoltage protection can be set simultaneously, under-voltage protection threshold value, it is not linear corresponding relation between electricity and the voltage of lithium battery 114, so can not show that information about power electric power detection protection circuit 114 uses BQ27742-G1 chip accurately according to lithium battery voltage, this chip uses Impedance Track technology, and for cell degradation, self discharge, the influence factors such as temperature automatically adjust, accurately follow the trail of battery electric quantity, architectural characteristic according to lithium battery 114, if there is overvoltage or under-voltage phenomenon in use process, lithium battery can be caused possible permanent damage, service life shortens.This built-in chip type overvoltage and under-voltage protection function, when charging normal, the pin CHG of BQ27742-G1 exports high level, and NMOS tube Q3 turns on.When overcharging, the pin CHG output low level of BQ27742-G1, NMOS tube Q3 is ended, and stops charging.During regular picture, the pin DSG of BQ27742-G1 exports high level, and NMOS tube Q2 turns on.Crossing when putting, the pin DSG output low level of BQ27742-G1, NMOS tube Q2 is ended, and stops electric discharge.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in the protection domain of utility model.
Claims (8)
1. an intelligent electric meter scene auxiliary detection device, it is characterized in that: include indicating lamp module, bluetooth communication module, central processing unit, RS485 interface circuit, power module, data memory module and battery capacity indication circuit, described central processing unit is attached with indicating lamp module, bluetooth communication module, RS485 interface circuit, data memory module, battery capacity indication circuit and power module respectively.
A kind of intelligent electric meter scene the most according to claim 1 auxiliary detection device, it is characterized in that: described indicating lamp module also includes electric meter fault display lamp, command mode Frame display lamp, the first transparent transmission mode agreement display lamp and the second transparent transmission mode agreement display lamp, described electric meter fault display lamp, command mode Frame display lamp, the first transparent transmission mode agreement display lamp, the second transparent transmission mode agreement display lamp are connected with central processing unit by GPIO interface the most respectively.
A kind of intelligent electric meter scene the most according to claim 1 auxiliary detection device; it is characterized in that: described power module includes lithium battery, charging circuit, mu balanced circuit, electric power detection protection circuit; described charging circuit is that lithium battery is charged; described mu balanced circuit is by the output voltage voltage stabilizing of lithium battery to 3.3V; described electric power detection protection circuit reads the electricity of lithium battery, and lithium battery arranges overvoltage protection and under-voltage protection.
A kind of intelligent electric meter scene the most according to claim 1 auxiliary detection device, it is characterised in that: described central processing unit passes through I2C bus connects with power module respectively, electric power detection protection circuit is connected.
5. according to a kind of intelligent electric meter scene auxiliary detection device described in claim 3 or 4, it is characterised in that: described electric power detection protection circuit uses BQ27742-G1 chip.
6. according to a kind of intelligent electric meter scene auxiliary detection device described in claim 1 or 2 or 4, it is characterised in that: described central processing unit uses MSP430 series monolithic.
A kind of intelligent electric meter scene the most according to claim 3 auxiliary detection device, it is characterised in that: described charging circuit uses the charge management module with USB interface.
A kind of intelligent electric meter scene the most according to claim 1 auxiliary detection device, it is characterised in that: described bluetooth communication module uses the TTL of HC-08 model to turn bluetooth module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520954138.5U CN205484765U (en) | 2015-11-25 | 2015-11-25 | On --spot auxiliary detection device of smart electric meter |
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| CN201520954138.5U CN205484765U (en) | 2015-11-25 | 2015-11-25 | On --spot auxiliary detection device of smart electric meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106255235A (en) * | 2016-08-31 | 2016-12-21 | 四川金理念科技有限公司 | A kind of low-power consumption bluetooth turns WIFI equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106255235A (en) * | 2016-08-31 | 2016-12-21 | 四川金理念科技有限公司 | A kind of low-power consumption bluetooth turns WIFI equipment |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20201125 |