CN203325178U - Wireless energy consumption collecting device - Google Patents
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- CN203325178U CN203325178U CN2013202637956U CN201320263795U CN203325178U CN 203325178 U CN203325178 U CN 203325178U CN 2013202637956 U CN2013202637956 U CN 2013202637956U CN 201320263795 U CN201320263795 U CN 201320263795U CN 203325178 U CN203325178 U CN 203325178U
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Abstract
The utility model discloses a wireless energy consumption collecting device. The wireless energy consumption collecting device comprises a wireless meter reading terminal and a plurality of wireless metering devices corresponding to the wireless meter reading terminal, wherein the wireless metering devices are internally provided with low-power wireless metering chips; the wireless meter reading terminal is internally provided with a low-power wireless terminal chip; the low-power wireless terminal chip and the low-power wireless metering chips are CC430 chips which adopt 433MHz wireless frequency band or 470MHz wireless frequency band; a wireless terminal transmission module and a wireless metering transmission module are in wireless communication through the CC430 chips, thereby achieving the data communication, collection and recording between the wireless meter reading terminal and the wireless metering devices; data collected by the wireless meter reading terminal is uploaded to a PC (personal computer) machine for treatment. The wireless energy consumption collecting device has the characteristics of low power consumption, high accuracy, high stability, small size and the like, has a wireless transceiving function, and can achieve the communication capability with a computer host system.
Description
Technical field
The utility model relates to energy consumption acquisition technique field, particularly a kind of wireless energy consumption collecting device.
Background technology
In the fast urbanization in current china process, building energy consumption and industrial energy consumption proportion are increasing, the contradiction of the energy and development.For example, in order to excavate substantially the energy-saving potential of each building, just need to carry out in advance the data acquisition of energy consumption and correlation parameter thereof to existing building, by the data analysis to collecting, obtain optimized energy-saving scheme.
In the prior art, to in carrying out the energy auditing process such as building, the collection in worksite of the energy consumption of building and the data relevant to building energy consumption is all with the hand-held acquisition instrument, as the cooperation hand-kepts such as hand-held humiture collector, hand-held carbon dioxide Acquisition Instrument are main, although that this handheld instrument has is simple to operate, easy to carry, gather characteristics flexibly, but the parameter of certain time point of intelligent acquisition, can't complete the continuity data acquisition.Simple several field data and meter reading data obviously can't collect energy consumption point and the energy laws of use of this building.If adopted wired mode need comprehensive wiring before energy auditing, in long in time limit, financial burden, to take the work that audit is purpose obviously unlikely for this.Simultaneously, the problems referred to above exist too in industrial process.
Therefore, be necessary to provide a kind of wireless energy consumption collecting device, to facilitate the energy consumption collection.
The utility model content
In order to overcome the defect of prior art, the utility model discloses a kind of wireless energy consumption collecting device, this energy consumption collecting device has the characteristics such as low-power consumption, precision is high, stability is strong, volume is little, has radio transmission-receiving function, can realize the communication capacity with the computing machine master system.
The utility model discloses following technical scheme:
A kind of wireless energy consumption collecting device, comprise Wireless recording meter terminal and the some wireless metering outfit corresponding with described Wireless recording meter terminal; Wherein:
Described wireless metering outfit comprises metering wireless transmitter module and the metering outfit be connected with described metering wireless transmitter module; Described metering wireless transmitter module comprises metering micro-control unit and the metering low-power wireless chip be connected with described metering micro-control unit;
Described Wireless recording meter terminal and a PC communicate; Described Wireless recording meter terminal comprises terminal wireless transmitter module and the data acquisition unit be connected with described terminal wireless transmitter module; Described terminal wireless transmitter module comprises terminal micro-control unit and the terminal low-power wireless chip be connected with described terminal micro-control unit;
Wherein, described terminal low-power wireless chip and described metering low-power wireless chip are the CC430 chip; Described CC430 chip is used 433MHz radio band or 470MHz radio band;
Carry out radio communication by described CC430 chip between described terminal wireless transmitter module and described metering wireless transmitter module, thereby realize data communication, collection and record between described Wireless recording meter terminal and described wireless metering outfit; And described Wireless recording meter terminal is processed the data upload collected to described PC.
Preferably, described metering outfit comprises a pair of pulse port, and described metering outfit is connected with the external interrupt port of described metering micro-control unit by described dipulse port; Pointer rotation half-turn when described metering outfit, produce pulsatile once in the port in described dipulse port; Pointer rotation one circle when described metering outfit, produce pulsatile once in the another port in described dipulse port; Described metering micro-control unit judges and records the data of described metering outfit according to the pulse number in described dipulse port.
Preferably, described metering wireless transmitter module is connected with described metering outfit by 485 interfaces.
Preferably, described terminal micro-control unit and described metering micro-control unit are the MSP430 single-chip microcomputer.
Preferably, between described terminal micro-control unit and described terminal low-power wireless chip and between described metering micro-control unit and described metering low-power wireless chip, by the SPI interface, be connected respectively.
Preferably, described terminal wireless transmitter module and described data acquisition unit carry out exchanges data by the UART interface.
Preferably, in described CC430 chip, be provided with the arouse machine processed module, under normal circumstances, described CC430 chip is in sleep state; When needs carry out radio communication, described arouse machine processed module is waken described CC430 chip up from sleep state, makes it periodically receive packet.
Preferably, described CC430 adopts the information retransmission protocol based on minimum hop count to carry out radio communication.
Compared with prior art, the beneficial effects of the utility model are as follows:
1, there are the characteristics such as low-power consumption, precision is high, stability is strong, volume is little;
2, there is radio transmission-receiving function, can realize the communication capacity with the computing machine master system;
3, cost compare is low.
The accompanying drawing explanation
The structural representation that Fig. 1 is the wireless energy consumption collecting device of the utility model specific embodiment;
The structural representation that Fig. 2 is the utility model specific embodiment Wireless recording meter terminal;
The structural representation that Fig. 3 A is the wireless metering outfit of the utility model one specific embodiment;
The structural representation that Fig. 3 B is the wireless metering outfit of another specific embodiment of the utility model;
The topological diagram that Fig. 4 is the utility model specific embodiment network node.
Embodiment:
Below with the drawings and specific embodiments, the utility model is further described.
Embodiment
As Fig. 1, a kind of wireless energy consumption collecting device, comprise Wireless recording meter terminal 100 and several wireless metering outfits 200 corresponding with Wireless recording meter terminal 100, wherein, be provided with metering wireless transmitter module 201 in wireless metering outfit 200, metering wireless transmitter module 201 comprises metering low-power wireless chip 204; Be provided with terminal wireless transmitter module 101 in Wireless recording meter terminal 100, terminal wireless transmitter module 101 comprises terminal low-power wireless chip 102; And terminal low-power wireless chip 102 and metering low-power wireless chip 204 are the CC430 chip; This CC430 chip is used 433MHz radio band or 470MHz radio band; Carry out radio communication by described CC430 chip between described terminal wireless transmitter module 101 and described metering wireless transmitter module 201, thereby realize data communication, collection and record between described Wireless recording meter terminal 100 and described wireless metering outfit 200; And described Wireless recording meter terminal 100 is processed the data upload collected to PC.
Wherein, the 470MHz radio band belongs to the low-consumption wireless frequency range, and this radio band is widely used in kilowatt meter reading-out system, at this, no longer it is specifically described.The 433MHz radio band belongs to the ultra-low power consumption wireless frequency range, and the low-consumption wireless technology based on 433MHz belongs near field communication (NFC), and all uses ISM(Industrial Scientific Medical) unlicensed band.The characteristics of 433MHz are low-power consumption, high reliability, strong anti-interference, arrange net easily, can easily network coverage be extended to several times by wireless repeater, therefore the occasion from little space to large space, from simple space environment to complex space environment can be used.
Low-power Technology is used the 433MHz radio band, the significant advantage of 433MHz be the penetrability of wireless signal strong, can propagate fartherly.Therefore the 433MHz technology generally is only applicable to the less application scenario of volume of transmitted data.From the angle of communication reliability, 433MHz can support the topological structure of Star Network, realizes the expansion in network coverage space by the mode of many base stations.
The normal mode of operation of 433HHz wireless technology is: only in the moment that data transmit-receive is arranged, just can set up wireless link, therefore greatly reduce the interference to miscellaneous equipment in network, also reduce the power consumption of equipment itself simultaneously.Certainly, this technology also can become to be similar to from the angle design of application layer the pattern of " always online ", by reasonably " refresh time interval " parameter is set, carrys out the compromise between practical function, power consumption and reliability.
Below Wireless recording meter terminal 100 and wireless metering outfit 200 are specifically described:
As Fig. 2, described Wireless recording meter terminal 100 and a PC 105 communicate; Wireless recording meter terminal 100 comprises terminal wireless transmitter module 101 and the data acquisition unit 104 be connected with terminal wireless transmitter module 101; The terminal low-power wireless chip 102 that terminal wireless transmitter module 101 comprises terminal micro-control unit (MCU) 103 and is connected with terminal micro-control unit 103.Wherein, between terminal micro-control unit 103 and terminal low-power wireless chip 102, by the SPI interface, be connected.
Wherein, comprise wireless transmitter module 101, data acquisition unit 104 and UART interface, described terminal wireless transmitter module 101 and described data acquisition unit 104 carry out exchanges data by the UART interface; Be provided with low-power wireless chip 102 and micro-control unit 103(MCU in described wireless transmitter module); The described micro-control unit of terminal micro-control unit 103 is the MSP430 single-chip microcomputer; Man-machine interface in described data acquisition unit 104 is responsible for the function with data communication, collection and the record of all wireless metering outfits 200.Can communicate with PC machine 105 by serial ports in addition, the data upload be recorded in FLASH is further processed to PC 105, wherein FLASH arranges in data acquisition unit 104.
As Fig. 3 A and Fig. 3 B, described wireless metering outfit 200 comprises metering wireless transmitter module 201 and the metering outfit 202 be connected with metering wireless transmitter module 201; Be provided with metering low-power wireless chip 204 and metering micro-control unit (MCU) 205 in metering wireless transmitter module 201; Described metering micro-control unit 205 is the MSP430 single-chip microcomputer.Wherein, metering micro-control unit 205 is connected by the SPI interface with measuring between low-power wireless chip 20.
In certain embodiments, metering wireless transmitter module 201 is connected with metering outfit 202 by the dipulse port.Particularly, metering outfit 202 comprises a pair of pulse port, and metering outfit 202 is connected with the external interrupt port of metering micro-control unit 205 by this dipulse port; Pointer rotation half-turn when metering outfit 202, produce pulsatile once in the port in this dipulse port; Pointer rotation one circle when metering outfit 202, produce pulsatile once in the another port in this dipulse port; Metering micro-control unit 205 judges and records the data of metering outfit 202 according to the pulse number in the dipulse port.Thereby can prevent false triggering and make error in data.
In other embodiments, metering wireless transmitter module 201 can also be connected with metering outfit 202 by 485 interfaces.Perhaps, some metering outfits are connected by the dipulse port with metering wireless transmitter module 201, and some metering outfits are connected by 485 interfaces with metering wireless transmitter module 201.
Be provided with the arouse machine processed module in the CC430 chip, under normal circumstances, the CC430 chip is in sleep state; When needs carry out radio communication, described arouse machine processed module is waken described CC430 chip up from sleep state, makes it periodically receive packet.Wireless metering outfit 200 does not initiatively send order or data, and all are all controlled by Wireless recording meter terminal 100.Because sending and receiving shares the Same Physical channel, therefore only allow at any time a wireless metering outfit in the transmission state.Only have the wireless metering outfit ability busy channel of being called out by Wireless recording meter terminal 100, Wireless recording meter terminal 100 is made and being replied.Every wireless metering outfit all is assigned a unique address.When Wireless recording meter terminal 100 is communicated by letter with wireless metering outfit, Wireless recording meter terminal 100 is first called out certain wireless metering outfit address, after waking called wireless metering outfit up, carry out exchanges data between master and slave two machines, not called wireless metering outfit keeps electromagnetic wave and wakes (WOR) state up.
Arousal function can guarantee the wireless chip reception packet of periodically waking up from sleep state under the intervention that there is no microprocessor.Wake-up period is by the WOR Timer Controlling, and this timer clock derives from interior RC oscillator.When in accepting state, synchronous vocabulary being detected in the cycle, by configurable general digital output pin (GDO), MCU is waken up, then carry out further data processing by MCU, if synchronous vocabulary do not detected within this cycle, will automatically get back to sleep state.
Wireless recording meter terminal 100 all needs it is waken up from the WOR state before each and wireless metering outfit 200 are carried out exchanges data, therefore designed a timed sending subroutine in software, every 1ms sends and once wakes data up, because the reception data time of metering outfit end is 9ms, so just can guarantee to have improved the efficiency of checking meter once just metering outfit being waken up within circulation.
The wireless energy consumption collecting device that the utility model provides has following features: node motion is few, the transmission information amount is little, requirement of real-time is high, and system is not very high for netinit time requirement, and reliability and the real-time of paying close attention to system run duration data more.In view of above characteristics, network system adopts the information retransmission protocol based on minimum hop count to carry out radio communication, adopts this agreement, and the information that in network, any node sends to concentrator all will transmit along shortest path the intermediate node of process (minimum).
Agreement, when setting up the minimum hop count field, has adopted the method for hop-by-hop search.After grid enters init state, the jumping figure of concentrator node is set to 0, and in network, the jumping figure of other nodes is set to maximum value, and then the concentrator node starts the hop-by-hop search node.At first the concentrator node sends 1 jumping request message Req-hopl, and this message is received by its neighbor node, and the jumping figure of these nodes oneself is set to 1, and returns to the message Join that adds network-hopl.Then the concentrator node sends 2 jumping request message Req-hop2 by all 1 hop nodes, this message is received by the neighbor node of 1 hop node, these nodes compare the minimum hop count and the own current minimum hop count that comprise in request message, in both, less jumping figure is set to own current minimum hop count, returns and adds internet message Join-hop2 to the concentrator node simultaneously.Such process is sustained, each node in last network has obtained and oneself has arrived minimum hop count and the forward node collection of concentrator node, the message that adds network that simultaneously the concentrator node returns according to each node, set up a network topological diagram that comprises all nodes in network and forward node collection thereof.
As shown in Figure 4, each summit in figure represents a node in network, and the Sink node represents concentrator, and other nodes represent the table node in network.The appearance on each summit means the number of this summit institute corresponding node forward node, and the arc head node of every directed arc is the forward node of its arc tail node.For example, summit F representation node F, its minimum hop count is 2, and the forward node number is 3, and the forward node collection is { A, B, C}.According to this network topological diagram, arrange at the scene the calorimeter node, each node is at a distance of 20 m, the baud rate of data input and data output all is made as 4800bps, following table 1 for theoretical calculate and the calorimeter data of 1 hop node 1,2 hop nodes 2 that actual measurement obtains respectively and 3 hop nodes 3 from being issued to received by concentrator consuming time.
The data of table 1:1 hop node to 3 hop node consuming time
| ? | 1 |
2 |
3 hop nodes |
| Concentrator (calculating) | 122.3 ms | 262.1 ms | 402.5 ms |
| Concentrator (actual measurement) | 142.3 ms | 306.2 ms | 489.8 ms |
The communication of wireless energy consumption collecting device adopts the star-like networking structure of short-distance wireless; Can realize the wireless two-way communication of point-to-multipoint, i.e. simple master-slave communication mode.First point refers to " Wireless recording meter terminal ", and second point refers to " wireless metering outfit ".
The wireless energy consumption collecting device that uses the utility model to provide carries out the energy consumption collection, comprises the steps:
S1: Wireless recording meter terminal receives address and the control command of the wireless metering outfit that need to carry out radio communication from PC by data acquisition unit;
S2: the wireless metering outfit that Wireless recording meter terminal is corresponding according to the ，Xiang Gai address, address of the wireless metering outfit received sends control command; This step further comprises:
S21: address and control command that described data acquisition unit carries out the wireless metering outfit of radio communication to the needs that receive from described PC are transferred to described terminal micro-control unit by the UART interface;
S22: address and control command that described terminal micro-control unit carries out described needs the wireless metering outfit of radio communication send to described terminal low-power wireless chip, and control the wireless metering outfit that described terminal low-power wireless chip is corresponding according to the ，Xiang Gai address, address of the wireless metering outfit received and send control command.
S3: the wireless metering outfit that receives control command is collected field data, and field data is carried out to the data processing, obtains continuous data, and continuous data is returned to described Wireless recording meter terminal, by described data acquisition unit, continuous data is returned to described PC.
Communicating by letter of step S2 and S3 communicates in 433MHz radio band or 470MHz radio band.The advantage of this frequency range is as follows:
Low-consumption wireless technology based on 433MHz belongs near field communication (NFC), and all uses the ISM unlicensed band.The characteristics of 433MHz are low-power consumption, high reliability, strong anti-interference, arrange net easily, can easily network coverage be extended to several times by wireless repeater, therefore the occasion from little space to large space, from simple space environment to complex space environment can be used.
Low-power Technology is used the 433MHz radio band, the significant advantage of 433MHz be the penetrability of wireless signal strong, can propagate fartherly.Therefore the 433MHz technology generally is only applicable to the less application scenario of volume of transmitted data.From the angle of communication reliability, 433MHz can support the topological structure of Star Network, realizes the expansion in network coverage space by the mode of many base stations.
The normal mode of operation of 433HHz wireless technology is: only in the moment that data transmit-receive is arranged, just can set up wireless link, therefore greatly reduce the interference to miscellaneous equipment in network, also reduce the power consumption of equipment itself simultaneously.Certainly, this technology also can become to be similar to from the angle design of application layer the pattern of " always online ", by reasonably " refresh time interval " parameter is set, carrys out the compromise between practical function, power consumption and reliability.
The information that Wireless recording meter terminal sends can pass to the wireless metering outfit of a plurality of wireless metering outfits or appointment, and the information that metering outfit that each is wireless sends can only be received by Wireless recording meter terminal.For guaranteeing proper communication, data mode is necessary for half-duplex and transmits, and transceiver must shield the receiving terminal of oneself when emission, and emission is open again after finishing.
In above-mentioned steps, the communication protocol of the radio communication in step S2 and S3 is:
1) setting traffic rate is 250kbps;
2) first byte of setting wireless meter reading terminal data is control command, and all the other bytes are data; Wireless recording meter terminal sends the response of waiting for wireless metering outfit after data, if wireless metering outfit is without response within 5 seconds, thinks overtime, and Wireless recording meter terminal turns to next task;
3), after the wireless metering outfit that need to carry out radio communication receives the order and data of Wireless recording meter terminal, access control order and wireless metering outfit address before the data of returning, communicate by letter normally with wireless metering outfit so that Wireless recording meter terminal is determined.
Communication data form in above-mentioned communication protocol is as shown in table 2:
Table 2 communication data form
| Leading | Synchronous vocabulary | Data length | Address | Data | CRC check |
Wherein, leading and synchronous vocabulary automatically inserts CRC check by hardware and is automatically added by hardware according to the setting of register, and data length and address are by software insertion before data send.Arrange in native system and adopt minimum shift keying (MSK) modulation system (supporting the transmission speed of maximum 512kbps), fixed data length pattern, receiver address filtering, CRC check, Data Whitening and staggered forward error verification (FEC).Data vernacular and staggered forward error verification are all completed automatically by hardware, without software intervention.These two functions are subject to the impact of burst error while having reduced to transmit data by real channel, thereby have increased the distance of radio communication.
While specifically applying in real life, we take water meter measurement and describe as example, and wherein the data acquisition of water meter measurement and record are realized by pulse acquisition circuit and ADC Acquisition Circuit, are described as follows:
A, pulse acquisition circuit
In native system, the base table of water meter adopts the cold water meter that meets the ISO-4064B standard.This table counting mechanism and measuring mechanism, through magnetic coupling transmission, adopt tongue tube sensor metering sender, produce a pulse while flowing to 0.01m3 water.Phenomenon is counted in the pulse produced in order effectively to prevent various possible interference shakes more, in the native system design, adopts double dry-reed pipe dipulse signal and forms Anti-shaking circuit by single chip circuit, guarantees the pulse measurement correctness.When single-chip microcomputer receives two pulse signals, be one group of effective pulse signal, single-chip microcomputer P1.0, P1.1 is as the pulse signal input terminal mouth.When one group of effective pulse signal of input, add the corresponding water yield in storer.Be provided with device affording magnetic protection in table, add that the single chip circuit design can effectively resist the external magnetic Recombinant Interferon α-2b.
B, ADC Acquisition Circuit
Native system carrys out metrical pulse quantity by the pick-up transducers voltage pulse signal.Installation of sensors, on the 0.01m3 position, will produce an analog voltage pulse signal when current are out-of-date, and single-chip microcomputer changes into digital signal record by simulating signal.Single-chip microcomputer be take 32 double samplings as a reference point, and a reference point on average reaches the high-accuracy digital signal value with 32 times.Sampling starts, and being has the sensor rising edge to trigger, and sampling finishes have the sensor negative edge to set out.When open sensor, digital signal is (1900-1950), and when sensor is closed, digital signal is (1500-1550).By judging digital signal, the number of times of rotation.And convert corresponding dial reading to.Adopt the Anti-interference Design circuit in system, and improved acquisition precision etc.The ADC Acquisition Circuit can be in conjunction with on market, the pulse collection sensor, and photoelectric sensor, the direct-reading sensor is not construed as limiting sensor herein, while specifically implementing, can also choose other sensor.
The wireless energy consumption collecting device that the other parts of water meter measurement provide with the utility model is identical, and the communication mode of the wireless energy consumption collecting device that its communication mode also provides with the utility model is identical.
The utility model preferred embodiment is just for helping to set forth the utility model.Preferred embodiment does not have all details of detailed descriptionthe, and also not limiting this utility model is only described embodiment.Obviously, according to the content of this instructions, can make many modifications and variations.These embodiment are chosen and specifically described to this instructions, is in order to explain better principle of the present utility model and practical application, thereby under making, the technical field technician can utilize the utility model well.The utility model only is subject to the restriction of claims and four corner and equivalent.
Claims (8)
1. a wireless energy consumption collecting device, is characterized in that, comprises Wireless recording meter terminal and the some wireless metering outfit corresponding with described Wireless recording meter terminal; Wherein:
Described wireless metering outfit comprises metering wireless transmitter module and the metering outfit be connected with described metering wireless transmitter module; Described metering wireless transmitter module comprises metering micro-control unit and the metering low-power wireless chip be connected with described metering micro-control unit;
Described Wireless recording meter terminal and a PC communicate; Described Wireless recording meter terminal comprises terminal wireless transmitter module and the data acquisition unit be connected with described terminal wireless transmitter module; Described terminal wireless transmitter module comprises terminal micro-control unit and the terminal low-power wireless chip be connected with described terminal micro-control unit;
Wherein, described terminal low-power wireless chip and described metering low-power wireless chip are the CC430 chip; Described CC430 chip is used 433MHz radio band or 470MHz radio band;
Carry out radio communication by described CC430 chip between described terminal wireless transmitter module and described metering wireless transmitter module, thereby realize data communication, collection and record between described Wireless recording meter terminal and described wireless metering outfit; And described Wireless recording meter terminal is processed the data upload collected to described PC.
2. wireless energy consumption collecting device according to claim 1, is characterized in that, described metering outfit comprises a pair of pulse port, and described metering outfit is connected with the external interrupt port of described metering micro-control unit by described dipulse port; Pointer rotation half-turn when described metering outfit, produce pulsatile once in the port in described dipulse port; Pointer rotation one circle when described metering outfit, produce pulsatile once in the another port in described dipulse port; Described metering micro-control unit judges and records the data of described metering outfit according to the pulse number in described dipulse port.
3. wireless energy consumption collecting device according to claim 1, is characterized in that, described metering wireless transmitter module is connected with described metering outfit by 485 interfaces.
4. wireless energy consumption collecting device according to claim 1, is characterized in that, described terminal micro-control unit and described metering micro-control unit are the MSP430 single-chip microcomputer.
5. wireless energy consumption collecting device according to claim 1, it is characterized in that, be connected by the SPI interface respectively between described terminal micro-control unit and described terminal low-power wireless chip and between described metering micro-control unit and described metering low-power wireless chip.
6. wireless energy consumption collecting device according to claim 1, is characterized in that, described terminal wireless transmitter module and described data acquisition unit carry out exchanges data by the UART interface.
7. wireless energy consumption collecting device according to claim 1, is characterized in that, in described CC430 chip, is provided with the arouse machine processed module, and under normal circumstances, described CC430 chip is in sleep state; When needs carry out radio communication, described arouse machine processed module is waken described CC430 chip up from sleep state, makes it periodically receive packet.
8. according to the described wireless energy consumption collecting device of claim 1 or 7, it is characterized in that, described CC430 adopts the information retransmission protocol based on minimum hop count to carry out radio communication.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103247163A (en) * | 2013-05-15 | 2013-08-14 | 上海先之决信息科技发展有限公司 | Wireless consumed energy acquisition equipment and consumed energy acquisition method |
| CN105225454A (en) * | 2015-09-29 | 2016-01-06 | 南京军理科技股份有限公司 | A kind of multi-object off-line data collecting method and system thereof |
-
2013
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103247163A (en) * | 2013-05-15 | 2013-08-14 | 上海先之决信息科技发展有限公司 | Wireless consumed energy acquisition equipment and consumed energy acquisition method |
| CN105225454A (en) * | 2015-09-29 | 2016-01-06 | 南京军理科技股份有限公司 | A kind of multi-object off-line data collecting method and system thereof |
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Granted publication date: 20131204 |