CN201556293U - Intelligent electric energy meter hand-held unit - Google Patents
Intelligent electric energy meter hand-held unit Download PDFInfo
- Publication number
- CN201556293U CN201556293U CN2009201875630U CN200920187563U CN201556293U CN 201556293 U CN201556293 U CN 201556293U CN 2009201875630 U CN2009201875630 U CN 2009201875630U CN 200920187563 U CN200920187563 U CN 200920187563U CN 201556293 U CN201556293 U CN 201556293U
- Authority
- CN
- China
- Prior art keywords
- electric energy
- energy meter
- pin
- handheld unit
- cpu
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model relates to an intelligent electric energy meter hand-held unit which is characterized by being provided with a hand-held unit with the functions of data storage and on-line programming; the hand-held unit is in communication with a tested electric energy meter by an RS 485 bus or an infrared sensor, and is used for acquiring the power consumption information; the hand-held unit is internally provided with an LCD used for displaying the acquired power consumption information of the electric energy meter; a panel of the hand-held unit is provided with keys used for selecting different communication protocols and query commands, and a buzzer and an LED which are used for displaying the working state and the error alarm of the hand-held unit; and the hand-held unit is connected with a battery voltage monitoring chip by a CPU, so as to monitor the power consumption situation of a battery. The intelligent electric energy meter hand-held unit is applicable to site work, and can have 485 or infrared communication with various electric energy meters in use, and lead the power consumption information to be displayed by the LCD.
Description
Technical field
The utility model relates to a kind of integrated circuit electronic product, is used for metering, power utility check, the electricity charge recovery operation of makers' product test of ammeter and power department.
Background technology
At present, with 485 and the electric energy meter of infrared communication function be used widely in power supply enterprise.
485 and infrared communication for power supply enterprise's remote data acquisition brought may; but the time regular meeting take place to gather less than the data or the phenomenon of gathering non-valid data; it is circuit question that people are difficult to judge; or ammeter communication interface problem; usually at first electric energy meter is taken back the electric energy meter calibration chamber and do communication test; put in back the scene after qualified,, reexamine communication line if still not all right.Doing like this wastes time and energy, efficient extremely under.If his-and-hers watches are remembered the row communication test at the scene, then can increase work efficiency greatly.
Some electric energy meters register card word, the scarce stroke of liquid crystal display and blank screen phenomenon can occur after operation a period of time, the meter reading personnel can't obtain truly to use electrical index.Traditional method is that " bug list " brought back the verification of electric energy meter calibration chamber, and in the face of such fault, particularly to the liquid crystal electric energy meter, verification worker also is not easy accurate judgement.If can then can obtain true power information quickly and accurately, fair, just enterprise and the user benefit safeguarded at the scene by reading the content in the electric energy meter storer.
Domestic also have the similar programmable device of part ammeter manufacturer production, tester etc., but they all are to be used to debug product separately, and versatility is poor.
The utility model content
The purpose of this utility model is a kind of electric energy meter handheld unit with the full compatibility of communication protocol that is applicable to work on the spot of design, can carry out 485 or infrared communication with various electric energy meters in the hope of the utility model, and can show power information with liquid crystal display LCD in usefulness.
The utility model technical solution problem adopts following technical scheme:
The design feature of the utility model intelligent electric energy meter handheld unit is that the handheld unit with data storage and online programming function is set, described handheld unit communicates by RS485 bus or infrared sensor and tested electric energy meter, obtains the power information of electric energy meter; Be provided with the liquid crystal display that is used for the obvious electric energy meter power information of being obtained in the described handheld unit; On the panel of described handheld unit, be provided with the button that is used to select different communication letter stipulations and querying command, and be provided with hummer and the light emitting diode that is used for showing handheld unit duty and false alarm; Described handheld unit is connected with the battery voltage monitoring chip with its CPU, with monitoring battery electricity consumption situation.
The design feature of the utility model intelligent electric energy meter handheld unit also is:
Described liquid crystal display is to adopt 3.3V OCM12864-9 LCD MODULE LCD; Described RS485 bus is to select 3.3V Max485 communication chip U2; The infrared receiving tube U11 of described infrared sensor is for being chosen as JS1838.
Described LCD MODULE LCD is connected with the IO mouth of CPU by power socket J2, and the LCD backlight control signal of exporting in CPU inserts 20 pin of LCD MODULE LCD by triode Q3 and resistance R 29.
1 pin of described communication chip U2 and 4 pin connect 33 pin and 32 pin of CPU respectively; 8 pin of communication chip U2 and 5 pin connect respectively power supply 3.3V and ground, 7 pin of communication chip U2 and 6 pin and meet stabilivolt Z1 after join by the communications cable and electric energy meter 485 interfaces.
Described infrared receiving tube U11 is connected to the serial port receiving end of CPU by pull-up resistor R33, the infrared emission carrier signal produces by timer, the CPU serial ports produces infrared signal, after the stack carrier signal by infrared transmitting tube IRDA_LED to the electric energy meter frame of giving an order.
Compared with the prior art, the utility model beneficial effect is embodied in:
1, the utility model highly versatile can be communicated by letter with the electric energy meter of infrared interface 485 with domestic various models in usefulness.
2, the utility model can online programming, is used for software upgrading.
2, the utility model low-power consumption, only needing 3 joint 7# batteries is power supply.
3, the utility model volume is little, is easy to carry, and is only bigger than mobile phone.
Description of drawings
Fig. 1 is the utility model hardware block diagram;
Fig. 2 a is the utility model minimum system figure;
Fig. 2 b is the utility model expanded function figure;
Fig. 3 is the utility model main program flow chart;
Fig. 4 a is the utility model communication disruption handling procedure;
Fig. 4 b is the utility model button interrupt handling routine;
Fig. 4 c is a regularly interrupt handling routine of the utility model.
Below in conjunction with drawings and Examples the utility model is further specified.
Embodiment
Hardware configuration:
Referring to Fig. 1, the present embodiment single-chip microcomputer is MSP430F149, LCD MODULE is 3.3V OCM12864-9, and 485 communication chips are 3.3V Max485, and infrared communication comprises infrared emission and reception, radiated element is an infrared transmitting tube, receiving element is JS1838, and battery is 3 joint 7# batteries, when cell voltage is lower than 3.7V, handheld unit is reported to the police, and on LCD low-voltage.
Referring to Fig. 2 a, Fig. 2 b, battery is by AS1117-3.3V power conversion chip U
5Convert 3.3V to and power to system, the P1.0-P1.4 mouth of the CPU of button K0-K4 and CPU is connected.Be late for, the P1 mouth is connected to low level by pull down resistor R6-R10, and when pressing, the P1 mouth is a high level, is used to realize the selection of different communication stipulations and querying command frame.
The 3 pin ground connection of R3111H371C battery voltage monitoring chip U6,2 pin connect anode, 1 pin joins with triode Q4 by resistance R 28, cell voltage just often, triode Q4 is in cut-off state, and 1.5 mouthfuls of the P of CPU, promptly 17 pin are connected to high level by pull-up resistor R26, when cell voltage is lower than 3.7V, triode Q4 saturation conduction, the P1.5 mouth becomes low level.
CON9 connector J1 among Fig. 2 a is used for linking to each other with the JTAG mouth of external debugging software, is used for online programming, is convenient to the handheld unit software upgrading, and 1,2 pin link to each other with 22 pin with 13 pin of CPU with R32 by resistance R 31; 3 pin connect the 3.3V power supply, 4 pin ground connection; 5,6,7,8 link to each other with 54 pin with 58,57,56,55 of CPU respectively with 9 pin.
LCD MODULE OCM12864-9 is connected with the IO mouth of CPU by the power socket J2 among Fig. 2 b, and LCD backlight control (20 pin) is connected to 2 pin of CPU by triode Q3 and resistance R 29.
485 communication module U2 are 3.3V Max485 chip, and the serial port 0 of its 1 pin and 4 pin and CPU joins, and are specially and are connected to 33 and 32 pin respectively; 8 pin and 5 pin be connected to power supply 3.3V and ground, 7 pin and 6 pin and meet stabilivolt Z1 after join by the communications cable and electric energy meter 485 communication ports.
JS1838 infrared receiving tube U11 is connected to the receiving end of the serial port 1 of CPU by pull-up resistor R33, be specially 35 pin, the 38K carrier signal of infrared emission produces by the timer TimeB of CPU, specifically be connected to 36 pin of CPU, CPU serial ports 1 (34 pin) produces command signal, form final infrared signal by infrared transmitting tube IRDA_LED after being superimposed upon carrier signal, to the electric energy meter frame of giving an order.
CPU is that low level resets.Button K5, resistance R 3 and capacitor C 11 impulse electricity circuit.Press K5, signal RST becomes low level, is connected to 58 pin of CPU, and CPU resets.
LED0-LED3 is that light emitting diode passes through the P2 mouth (23-26 pin) that current-limiting resistance R11-R14 inserts CPU, and hummer Bell links to each other with IO mouth 6 pin of CPU by driving triode Q11.Light emitting diode is used for showing the different duty of handheld unit with the hummer work in combination.
Storer 93C46 is a Serial E
2PROM is used to store data.Its 5 and 8 pin is ground connection and 3.3V power supply respectively, and 1,2,3 link to each other with 29 pin with 28,31,30 of 4 pin and CPU.
Software implementation
Software design is divided into initialize routine, signal procedure, button loading routine, five parts of LCD display routine and interrupt handling routine.The master routine software flow pattern as shown in Figure 3; Interrupt routine comprises that communication disruption handling procedure, button interrupt handling routine and timing interrupt handling routine branch are for another shown in Fig. 4 a, Fig. 4 b and Fig. 4 c.
Whether master routine is opened interruption after at first finishing the power-up initializing work of each module, detect successively then whether communication mark is arranged, have button to handle sign, whether the LCD show label is arranged, and whether timing index etc. is arranged, if having then carry out corresponding program.System entered low power consumpting state after all tasks were finished dealing with, and this moment, system power dissipation reached minimum.System is in low power consumpting state in the most time, only has no progeny in generation, and system just can be waken up from low power consumpting state, carries out the training in rotation sign and carries out corresponding processing program.
The work that corresponding sign is set is finished by interrupt routine, and as shown in Figure 3, they are respectively communication disruption, button interruption, timing interruption etc.When central stopping pregnancy is given birth to, single-chip microcomputer enters interruption, carry out interrupt handling routine and put corresponding sign, before interruption is returned, carry out and withdraw from the low-power consumption order, interrupting returning the back system with each sign of poll and handle accordingly like this, handle all tasks, final system will enter low power consumpting state once more.
Claims (5)
1. an intelligent electric energy meter handheld unit is characterized in that being provided with the handheld unit with data storage and online programming function, and described handheld unit communicates by RS485 bus or infrared sensor and tested electric energy meter, obtains the power information of electric energy meter; Be provided with the liquid crystal display that is used to show the electric energy meter power information of being obtained in the described handheld unit; On the panel of described handheld unit, be provided with the button that is used to select different communication stipulations and querying command, and be provided with hummer and the light emitting diode that is used for showing handheld unit duty and false alarm; Described handheld unit is connected with the battery voltage monitoring chip with its CPU, with monitoring battery electricity consumption situation.
2. intelligent electric energy meter handheld unit according to claim 1 is characterized in that being provided with 3.3V OCM12864-9 LCD MODULE LCD; Described RS485 bus is to select 3.3V Max485 communication chip U2; The infrared receiving tube U11 of described infrared sensor is JS1838.
3. intelligent electric energy meter handheld unit according to claim 2, it is characterized in that described LCD MODULE LCD is connected with the IO mouth of CPU by power socket J2, the LCD backlight control signal of exporting in CPU inserts 20 pin of LCD MODULE LCD by triode Q3 and resistance R 29.
4. intelligent electric energy meter handheld unit according to claim 2 is characterized in that 1 pin of described communication chip U2 and 33 pin and 32 pin that 4 pin meet CPU respectively; 8 pin of communication chip U2 and 5 pin connect respectively power supply 3.3V and ground, 7 pin of communication chip U2 and 6 pin and meet stabilivolt Z1 after join by the communications cable and electric energy meter 485 interfaces.
5. intelligent electric energy meter handheld unit according to claim 2, it is characterized in that described infrared receiving tube U11 is connected to the serial port receiving end of CPU by pull-up resistor R33, the infrared emission carrier signal produces by timer, the CPU serial ports produces infrared signal, after the stack carrier signal by infrared transmitting tube IRDA LED to the electric energy meter frame of giving an order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201875630U CN201556293U (en) | 2009-09-16 | 2009-09-16 | Intelligent electric energy meter hand-held unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201875630U CN201556293U (en) | 2009-09-16 | 2009-09-16 | Intelligent electric energy meter hand-held unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201556293U true CN201556293U (en) | 2010-08-18 |
Family
ID=42615980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201875630U Expired - Lifetime CN201556293U (en) | 2009-09-16 | 2009-09-16 | Intelligent electric energy meter hand-held unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201556293U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941085A (en) * | 2014-04-18 | 2014-07-23 | 天津师范大学 | Low-power-consumption electric energy acquisition device |
| CN110609253A (en) * | 2019-10-30 | 2019-12-24 | 深圳供电局有限公司 | Photoelectric device of electric energy meter and infrared emission control method |
| CN112216095A (en) * | 2020-11-05 | 2021-01-12 | 成都市三宇仪表科技发展有限公司 | High-speed infrared communication system and method for Internet of things water meter |
-
2009
- 2009-09-16 CN CN2009201875630U patent/CN201556293U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941085A (en) * | 2014-04-18 | 2014-07-23 | 天津师范大学 | Low-power-consumption electric energy acquisition device |
| CN110609253A (en) * | 2019-10-30 | 2019-12-24 | 深圳供电局有限公司 | Photoelectric device of electric energy meter and infrared emission control method |
| CN110609253B (en) * | 2019-10-30 | 2023-10-10 | 深圳供电局有限公司 | Electric energy meter photoelectric device and infrared emission control method |
| CN112216095A (en) * | 2020-11-05 | 2021-01-12 | 成都市三宇仪表科技发展有限公司 | High-speed infrared communication system and method for Internet of things water meter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102081118B (en) | Real-time metering two-way communication intelligent ammeter | |
| CN103453985A (en) | Distribution type wireless luminous intensity measurement instrument | |
| CN101707018B (en) | Electric energy metering verification simulating system | |
| CN201556293U (en) | Intelligent electric energy meter hand-held unit | |
| CN204044576U (en) | A kind of rent puts plant growth environment monitoring device | |
| CN108132066A (en) | A kind of design method of mine sensors | |
| CN201374592Y (en) | Parameter setting device for electric power distribution automation system terminal maintenance | |
| CN210271226U (en) | Handheld meter system for monitoring and data acquisition of field instrument | |
| CN204203438U (en) | Storage battery discharge tester | |
| CN203287919U (en) | Mobile terminal based on GPRS and RFID technology | |
| CN205139329U (en) | Module lithium cell testing arrangement | |
| CN115061449A (en) | Test tool, test system and test method | |
| CN201166695Y (en) | Fault detection case | |
| CN208091510U (en) | A kind of multifunctional internet of things gauge table | |
| CN103279781A (en) | Mobile terminal based on GPRS technology and RFID technology | |
| CN207799422U (en) | The offline diagnostic device of vehicle | |
| CN105784058A (en) | Simulation liquid level monitoring system and simulation liquid level monitoring method | |
| CN202512725U (en) | Electric energy meter reading device with integrated infrared interface and 485 interface | |
| CN217425974U (en) | Beat detection circuit and detection device | |
| CN201689579U (en) | Electric energy metering detection simulation system | |
| CN201378278Y (en) | Intelligent industrial-control collector | |
| CN201707209U (en) | Wrist strap display | |
| CN205594150U (en) | Electric energy meter of electric energy meter calibration alarm system and this system of application based on singlechip | |
| CN204556873U (en) | Acquisition device in weather station debugging instrument | |
| CN108628211A (en) | A kind of data concentrator and application method of installation and repairing quality intelligent control platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100818 |