CN103996274B - Ammeter is wireless reading device and method - Google Patents
Ammeter is wireless reading device and method Download PDFInfo
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- CN103996274B CN103996274B CN201410215169.9A CN201410215169A CN103996274B CN 103996274 B CN103996274 B CN 103996274B CN 201410215169 A CN201410215169 A CN 201410215169A CN 103996274 B CN103996274 B CN 103996274B
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Abstract
The invention discloses the wireless reading device of ammeter and method.It comprises processing unit, pulse transducer, battery module, and described ammeter is wireless, and reading device is powered by battery module, and processing unit obtains the power information on ammeter by pulse transducer; Described ammeter is wireless, and reading device is provided with wireless communication module, antenna further, and processing unit is by wireless communication module, antenna and external communication.It is low that the present invention has plant energy consumption, and installation process is convenient, safety, can the various power information of survey record, has the advantages such as various alert event output functions.
Description
Technical field
The present invention relates to the wireless reading device of a kind of ammeter, particularly relate to and a kind of safe ready is installed, the ammeter having various alert event to export is wireless reading device.
Background technology
Ammeter is the measuring instrument of power consumption, and its output information comprises the important informations such as current power power, power consumption.By reading the information that ammeter exports, there is very important meaning for our safety utilization of electric power, using electricity wisely, Based Intelligent Control.
Mostly the ammeter reading device proposed in prior art is based on RS485 bus, and reading device also needs externally fed.Needing wiring with regard to making when installing like this, for non-engineering technical personnel, having certain enforcement difficulty, and there is the great potential safety hazard contacting forceful electric power and cause electric shock such.And ammeter is as charging measuring instrument, connection terminal is generally protected by case, and unauthorized user must not be opened.
The accumulative power consumption of existing ammeter read method read-only power taking table, can not read the power consumption of a certain special time period, such as inquires about the power consumption in 1 o'clock to 4 o'clock morning afterwards.In addition, existing ammeter read method is indifferent to real-time electric power and change thereof, output of such as can not reporting to the police at once when electric power exceedes a certain particular value.
Summary of the invention
In order to solve the deficiency in above-mentioned prior art, the invention provides one can convenient and safely install, can the various power information of survey record, has the wireless reading device of ammeter of various alert event output function.
The object of the invention is to be achieved through the following technical solutions:
The wireless reading device of a kind of ammeter, it comprises processing unit, pulse transducer, battery module, and described ammeter is wireless, and reading device is powered by battery module, and processing unit obtains the power information on ammeter by pulse transducer; Described ammeter is wireless, and reading device is provided with wireless communication module, antenna further, and processing unit is by wireless communication module, antenna and external communication.
Described processing unit comprises arithmetical unit, storer, clock.
The signal that described pulse transducer is sent by the flashlight of photoelectric conversion mode sensing ammeter.
Described ammeter is wireless, and reading device is provided with line further, connects pulse transducer and processing unit, makes pulse transducer easy for installation.
Because device is battery-powered, so reduce power consumption just can have longer stream time.The present invention is in dormant state to realize low-power consumption as much as possible mainly through making equipment.
A method of work for the described wireless reading device of ammeter, described method of work comprises:
1) power-up initializing is arranged, and device enters dormant state;
2) pulse or timing wake-up device:
When pulse Rouser,
Processing unit carries out power consumption record,
Processing unit calculates performance number and record,
If generation alert event, then reported by wireless,
Device enters dormant state, waits for and waking up next time;
When timing wake-up device,
Wireless communication module enters accepting state,
If receive external command, processing unit then carries out corresponding data communication,
Device enters dormant state, waits for and waking up next time.
Step 2) described in power consumption record record the accumulative power consumption of each period at times and be stored in the storer of processing unit.
Step 2) described in performance number calculated by the interval time between two pulses.
Step 2) described in alert event reach setting alarming value and trigger alarm by one or more in electricity, power, power transient amount parameter.
Compared with prior art, beneficial effect of the present invention is:
1, the present invention utilizes pulse or timing wake-up two kinds of mechanism to achieve low-power consumption, and can apply small-sized battery is that device is powered, and makes whole equipment miniaturization, and device installation process is convenient, safety.
2, there is not the situation of electrical Interference in device work and the complete electrical isolation of ammeter work.
3, the passive reception ammeter of device sends signal, does not initiatively read, does not disturb the operation of ammeter.
4, labor aptitude is wide, as long as the ammeter having flashlight to export can use, does not need infrared interface and RS485 interface hardware, does not also need the software protocol that above-mentioned interface is corresponding.
5, wireless mode and peripheral device communication is adopted, can long-range reading ammeter running status.
6, multi-period information can be stored for inquiry, there is multiple alert event output function.
7, read by the convenient of ammeter information, can derive and enrich function, make this important information source of ammeter bring the sensing layer of Internet of Things into.Realize the function that such as remote monitoring, Based Intelligent Control, leakage current detect, electrical appliance operational diagnostics are such, also can help our using electricity wisely, realize energy-saving and emission-reduction.
Accompanying drawing explanation
With reference to accompanying drawing, disclosure of the present invention will be easier to understand.Those skilled in the art will readily understand: these accompanying drawings only for illustrating technical scheme of the present invention, and and are not intended to be construed as limiting protection scope of the present invention.
Fig. 1 is the application schematic diagram of the wireless reading device of ammeter;
Fig. 2 is the structural representation of the wireless reading device of ammeter;
Fig. 3 is initialization process flow diagram of the present invention;
Fig. 4 is that the pulse of the wireless reading device of ammeter wakes workflow diagram up;
Fig. 5 is the timing wake-up workflow diagram of the wireless reading device of ammeter;
In figure, ammeter is wireless reading device 10, pulse transducer 11, line 12, antenna 13, ammeter 14.
Embodiment
Fig. 1-5 and following description describe alternative of the present invention and how to implement to instruct those skilled in the art and to reproduce the present invention.In order to instruct technical scheme of the present invention, simplifying or having eliminated some conventional aspect technical schemes.Those skilled in the art should understand that the modification that is derived from these modes or replace will within the scope of the invention.Those skilled in the art should understand that following characteristics can combine to form multiple modification of the present invention in every way.Therefore, the present invention is not limited to following Alternate embodiments, and only by claim and their equivalents.
Fig. 1 schematically illustrates the application schematic diagram of the wireless reading device of embodiment of the present invention ammeter.As shown in Figure 1, described pulse transducer 11 can be arranged in the main body of the wireless reading device 10 of ammeter, certainly, line 12 also can be used to be connected with main body.Pulse transducer 11 can be bonded on the flashlight window of ammeter 14, easy for installation.The mode adopting line to be connected between pulse transducer 11 with the wireless reading device 10 of ammeter, makes reading device install and freely facilitates.And reading device can not stop ammeter screen display, also easily make the installation site that reading device finds radio signal shielding little.Reading device is launched by antenna 13 or is received electromagnetic wave, realizes wireless telecommunications.
Fig. 2 gives the structural representation of the wireless reading device of ammeter of the present invention, it comprises processing unit, pulse transducer 11, battery module, described ammeter is wireless, and reading device is powered by battery module, processing unit obtains the power information on ammeter 14 by pulse transducer 11, and processing unit is by wireless communication module, antenna 13 and external communication.
Processing unit comprises arithmetical unit, storer, clock.The signal that pulse transducer 11 is sent by photoelectric conversion mode sensing ammeter flashlight.
Because device is battery-powered, so reduce power consumption just can have longer stream time.The present invention is in dormant state to realize low-power consumption as much as possible mainly through making equipment.Illustrating below by some simple budgetary estimates uses this method to the contribution reducing device power consumption:
According to prior art, get general parameter, battery capacity is 1000mAH, wireless module received current 15mA, and it is 200uA that device enlivens electric current, and device quiescent current is 25uA.Ammeter pulse in every 2 seconds, each pulse wakes rear work 0.2ms up.Wireless module timing wakes up once in 1 second, receives 2ms.
If device is in active always, and in order to response data communication, wireless module is in accepting state always, so battery working time budgetary estimate formula 1000mAH/15mA+200uA, is about 65.8 hours, namely 2.7 days.
Adopt method of work of the present invention, then power consumption forms primarily of 3 parts, comprises device quiescent current 25uA, pulse wakes electric current up, timing wake-up electric current.Pulse wakes electric current budgetary estimate formula 200uA*0.2ms/2s up, is 0.02uA.Timing wake-up electric current budgetary estimate formula 15mA*2ms/1s is 30uA.Such battery working time budgetary estimate formula 1000mAH/25uA+0.02uA+30uA, is about 18175 hours, namely 2.07.
Fig. 3 schematically illustrates initialization process flow diagram of the present invention.After electrification reset, processing unit performs Initialize installation.The various running parameters that Initialize installation comprises processing unit self are arranged and wireless communication module Initialize installation.After executing Initialize installation, device enters dormant state, reduces system power dissipation with this.
Fig. 4 schematically illustrates pulse of the present invention and wakes workflow diagram up, and described method of work comprises:
When ammeter sends pulse, Rouser.Processing unit carries out power consumption record, namely records the number of pulses in certain hour section.The described period, concrete length can be arranged by external unit.Processing unit records the accumulative power consumption of each period at times according to settings and stores in memory, reads for external unit.Period setting can, according to the peak-trough electricity time, make power consumption count peak power consumption or paddy power consumption respectively.Period setting also can as required, and the time period being set to a length carries out a bulk registration.
Processing unit calculates performance number.Performance number was calculated by the interval time between two pulses.Such as ammeter pulse output attribute is 1600imp/kWh, and when showing that bearing power is 1kW, then pulsed frequency is 1600/3600s=0.444Hz.If the recurrent interval is 1s, anti-release current power power is 2.25kW.
If generation alert event, then reported by wireless.Alert event is arranged by external unit.Alert event reaches setting alarming value and trigger alarm by one or more in electricity, power, power transient amount parameter.Alert event such as can be set and be that power is greater than 1.5kW and power transient amount is 100W just trigger alarm.
Then device enters dormant state, waits for and waking up next time.
Fig. 5 schematically illustrates timing wake-up workflow diagram of the present invention, and described method of work comprises:
Device timing wake-up, this timing wake-up source may also may from wireless module from processing unit.Wake rear wireless module up to enter accepting state inspection and whether have external unit to send communication instruction.If receive director data, then enter data communication process.
Then device enters dormant state, waits for and waking up next time.
embodiment 1
External unit can inquire about power consumption hourly after wishing, then arranging record slot length by wireless telecommunications is 1 hour.When data taken by needs time, then by the power consumption data in wireless telecommunications reading device storer.
embodiment 2
External unit wishes the cut-off parts load when electric power is greater than 5kW, and checks that whether topworks is working properly.Then by wireless telecommunications alert event 1 can be set for power and be greater than 5kW.When the wireless reading device of ammeter is greater than 5kW once calculate current power, then trigger alarm at once, and send alerting signal by wireless.External unit obtains pilot relay after alerting signal, cuts off wherein fractional load.Whether predetermined value is dropped to again, to reach the object of closed-loop control by wireless reading current power value.
embodiment 3
External unit wishes to do coordinated signals, when a certain electrical appliance A is opened time, starts electrical appliance B.The power of known A is the power of 1000W, B is 100W.Then by wireless telecommunications, alert event 2 can be set for power transient+1000W.If current power is 800W, when performance number transition is 1800W time, reading device trigger alarm event 2 that ammeter is wireless, and send alerting signal by wireless.External unit controls to start electrical appliance B after obtaining warning message.External unit also can read current power value whether at the 1900W of theory.
Power transient, except being set to positive transient, also can be set to negative transient.
Claims (7)
1. the wireless reading device of ammeter, it is characterized in that: it comprises processing unit, pulse transducer (11), battery module, described ammeter is wireless, and reading device (10) is powered by battery module, and processing unit obtains the power information on ammeter (14) by pulse transducer (11); Described ammeter is wireless, and reading device (10) is provided with wireless communication module, antenna (13) further, and processing unit is by wireless communication module, antenna (13) and external communication;
The signal that described pulse transducer (11) is sent by the flashlight of photoelectric conversion mode sensing ammeter.
2. the wireless reading device of ammeter according to claim 1, is characterized in that: described processing unit comprises arithmetical unit, storer, clock.
3. the wireless reading device of ammeter according to claim 1, is characterized in that: described ammeter is wireless, and reading device is provided with line (12) further, connects pulse transducer (11) and processing unit, makes pulse transducer (11) easy for installation.
4. a method of work for the wireless reading device of ammeter according to claim 1, described method of work comprises:
1) power-up initializing is arranged, and device enters dormant state;
2) pulse or timing wake-up device:
When pulse Rouser,
Processing unit carries out power consumption record,
Processing unit calculates performance number and record,
If generation alert event, then reported by wireless,
Device enters dormant state, waits for and waking up next time;
When timing wake-up device,
Wireless communication module enters accepting state,
If receive external command, processing unit then carries out corresponding data communication,
Device enters dormant state, waits for and waking up next time.
5. according to claim
4described method of work, is characterized in that: step 2) described in power consumption record record the accumulative power consumption of each period at times and be stored in the storer of processing unit.
6. according to claim
4described method of work, is characterized in that: step 2) described in performance number calculated by the interval time between two pulses.
7. according to claim
4described method of work, is characterized in that: step 2) described in alert event reach setting alarming value and trigger alarm by one or more in electricity, power, power transient amount parameter.
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| CN103996274B true CN103996274B (en) | 2016-02-03 |
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| CN201594113U (en) * | 2009-12-23 | 2010-09-29 | 沈阳时尚实业有限公司 | Single-phase electric energy meter with power line carrier communication and remote power on/off control |
| CN103049990A (en) * | 2012-12-20 | 2013-04-17 | 宁波宇宏电气有限公司 | Remote ammeter reading method and system, and intelligent ammeter |
| CN103136926A (en) * | 2011-11-22 | 2013-06-05 | 深圳信息职业技术学院 | Optoelectronic reading device and photoelectric reading method for ammeter dial data |
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| KR20050036080A (en) * | 2003-10-15 | 2005-04-20 | 엠텍코리아 주식회사 | Remote meter-reading system used in wire and wireless |
| CN201126632Y (en) * | 2007-11-07 | 2008-10-01 | 孙军平 | WSN electric energy data acquisition and communication apparatus |
| CN202434049U (en) * | 2011-12-30 | 2012-09-12 | 江苏联宏自动化系统工程有限公司 | Water meter data acquirer |
| CN102411838B (en) * | 2011-12-30 | 2013-07-03 | 重庆市电力公司电力科学研究院 | Wireless power meter reading system and control method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701838A (en) * | 2009-11-19 | 2010-05-05 | 蓝景恒 | Intelligent meter and meter reading instrument |
| CN201594113U (en) * | 2009-12-23 | 2010-09-29 | 沈阳时尚实业有限公司 | Single-phase electric energy meter with power line carrier communication and remote power on/off control |
| CN103136926A (en) * | 2011-11-22 | 2013-06-05 | 深圳信息职业技术学院 | Optoelectronic reading device and photoelectric reading method for ammeter dial data |
| CN103049990A (en) * | 2012-12-20 | 2013-04-17 | 宁波宇宏电气有限公司 | Remote ammeter reading method and system, and intelligent ammeter |
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Effective date of registration: 20230421 Address after: No. C2455, Floor 2, Building 16, Yard 37, Chaoqian Road, Science Park, Changping District, Beijing 102200 Patentee after: BEIJING YUPONT ELECTRIC POWER TECHNOLOGY Co.,Ltd. Address before: 310053 Qianjiangwan Garden 30-901, Binjiang District, Hangzhou City, Zhejiang Province Patentee before: Shi Hongkun |