CN203858476U - Combined electric power meter - Google Patents
Combined electric power meter Download PDFInfo
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- CN203858476U CN203858476U CN201420178283.4U CN201420178283U CN203858476U CN 203858476 U CN203858476 U CN 203858476U CN 201420178283 U CN201420178283 U CN 201420178283U CN 203858476 U CN203858476 U CN 203858476U
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- processor
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Abstract
The utility model discloses a combined electric power meter which comprises an onsite portion and a portable portion. The onsite portion comprises a first processor, an analog quantity collection module, a first communication module, a switching quantity collection module and a power loss protective module, wherein the first communication module is connected with the output end of the first processor, and comprises a first communication interface which is used for realizing detachable connection. The portable portion comprises a second processor, a display unit, a second communication module, a communication line and a display control module, wherein the second communication module comprises a second communication interface which corresponds to the first communication interface and is used for realizing detachable connection, and the communication line is detachably connected to the first communication interface via the second communication interface to realize data communication.
Description
Technical field
The utility model relates to a kind of electric instrument, relates in particular to a kind of Combined type power instrument.
Background technology
Instrument is applied to multiple technical fields as traditional pick-up unit, but electric instrument is as wherein a kind of, is applied in electric system, on-the-spot electric power being monitored.The existing electric instrument for detection of forceful electric power is usually designed to as a whole, be installed in detected scene, because such electric instrument equipment volume is larger, for the less electric power Test Field in some spaces, it is inconvenient that the electric instrument that installation volume is larger seems, in addition, switch cubicle instrument of the prior art is located on the cabinet door of switch cubicle conventionally, therefore, all signals will cause in this instrument by terminals subgroup is installed, so be inconvenient to construct, moreover, because electric instrument is generally used for forceful electric power to detect, instrument of the prior art can cause forceful electric power cabinet door conventionally, so operating personnel's safety has been caused to hidden danger.
In addition, digital power instrument of the prior art generally includes processing unit, electric power signal collecting unit, display unit, control module, communication unit and loss protecting unit.For this type of digital power instrument be generally logarithm according to this certain time interval be saved in digital storage media, in EEPROM, but, because this class digital storage media is restricted to the number of times writing, preserve if data need to frequently be carried out the digital loss of avoiding too much, this storage medium cannot be used for a long time, if widened the interval time that data are preserved, again can be in the time of power down save data in time.
Utility model content
The technical problems to be solved in the utility model is to propose one can easy construction, makes to operate safer, and can carry out the Combined type power instrument of preserving in time to data when power down.
For this reason, a kind of Combined type power instrument of the present utility model, comprising: situ part and portable part;
Described situ part comprises: first processor, has data storage cell, and the data timing being input in described first processor is preserved automatically; Analogue collection module, with being connected of described first processor, gathers for the electric analogy amount to on-the-spot, and converts described electric analogy amount to numerical data and export described first processor to;
First communication module, is connected with the output terminal of described first processor, and wherein, described communication module also comprises the first communication interface removably connecting for realizing;
Switch quantity acquisition circuit, is connected with the input end of described first processor;
Loss protecting module, its input end is connected with DC power supply terminal, its output terminal is connected with the power input of described first processor, when electric by obtaining in instrument, the electric capacity of himself is charged, and be that first processor continues power supply at the appointed time by the described electric capacity after charging in the time of power-off, thereby make described first processor automatically be stored in described storage unit to data within the described stipulated time;
Described portable part is divided and is comprised: the second processor;
Display unit, is connected with the output terminal of described the second processor;
Second communication module, is connected with the input end of described the second processor, and described second communication module comprises corresponding to described the first communication interface realizing the second communication interface removably connecting;
Communication line, is detachably connected described second communication interface and described the first communication interface for realizing, thereby realizes data communication;
Display control module, is connected with described the second processor, and the described display unit that the data in the described data storage cell of described first processor is sent to described portable part through described communication line by described display control module shows.
Above-mentioned Combined type power instrument, described first processor comprises the first single-chip microcomputer and the first memory being connected with described the first single-chip microcomputer, described the second processor is second singlechip.
Above-mentioned Combined type power instrument, described analogue collection module is voltage acquisition module, current acquisition module or voltage-to-current acquisition module.
Above-mentioned Combined type power instrument, described the first communication interface and described second communication interface are RS232 interface, RS485 interface or RS422 interface.
Above-mentioned Combined type power instrument, also comprises: overcurrent alarm module, is connected with described first processor, for output relay open command in the time over-current state being detected.
Above-mentioned Combined type power instrument, described analogue collection module is ATT7022A computation chip.
Above-mentioned Combined type power instrument, described display unit comprises LED drive circuit module and the LED display being connected with described LED drive circuit module.
The utility model has following technique effect with respect to prior art:
1, Combined type power instrument of the present utility model, comprising situ part and portable part; Described situ part comprises: first processor, has data storage cell, and the data timing being input in described first processor is preserved automatically; Analogue collection module, with being connected of described first processor, gathers for the electric analogy amount to on-the-spot, and converts described electric analogy amount to numerical data and export described first processor to; First communication module, is connected with the output terminal of described first processor, and wherein, described communication module also comprises the first communication interface removably connecting for realizing; Switch quantity acquisition circuit, is connected with the input end of described first processor; Loss protecting module, its input end is connected with DC power supply terminal, its output terminal is connected with the power input of described first processor, when electric by obtaining in instrument, the electric capacity of himself is charged, and be that first processor continues power supply at the appointed time by the described electric capacity after charging in the time of power-off, thereby make described first processor automatically be stored in described storage unit to data within the described stipulated time; Described portable part is divided and is comprised: the second processor; Display unit, is connected with the output terminal of described the second processor; Second communication module, is connected with the input end of described the second processor, and described second communication module comprises corresponding to described the first communication interface realizing the second communication interface removably connecting; Communication line, is detachably connected described second communication interface and described the first communication interface for realizing, thereby realizes data communication; Display control module, is connected with described the second processor, and the described display unit that the data in the described data storage cell of described first processor is sent to described portable part through described communication line by described display control module shows.
2, it is unnecessary excessive that more than design can make to be installed to the on-the-spot equipment of holding on the one hand, this is because relative prior art has reduced the part for user's operation and demonstration, more convenient to safeguarding, moreover, user is direct control situ part not, only portable part need to be connected with situ part and directly be checked current detection data by the communication line removably connecting, for more check point, if situ part of the present utility model is all installed, staff only need to carry the data that the portable part of a small volume can detect multiple described situ parts and checks and record, in addition, for the situation of scene end power-off, the utility model also can solve simultaneously because power loss data cannot automatically preserve preferably technical matters, in technique scheme, add loss protecting module, pass through at the appointed time first processor to be continued to power supply, ensure that first processor preserves at the appointed time automatically to the electric power data collecting, improved the adaptibility to response of instrumentation under emergency case.
Brief description of the drawings
For content of the present utility model is more likely to be clearly understood, according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail below, wherein:
Fig. 1 is the utility model Combined type power instrument module connection layout;
Fig. 2 is the circuit theory diagrams of the utility model power failure protection circuit.
Embodiment
Be illustrated in figure 1 the utility model Combined type power instrument, comprise: situ part and portable part;
Described situ part comprises: first processor, has data storage cell, and the data timing being input in described first processor is preserved automatically; Analogue collection module, with being connected of described first processor, gathers for the electric analogy amount to on-the-spot, and converts described electric analogy amount to numerical data and export described first processor to;
First communication module, is connected with the output terminal of described first processor, and wherein, described communication module also comprises the first communication interface removably connecting for realizing;
Switch quantity acquisition circuit, is connected with the input end of described first processor, for controlling the work of situ part;
Loss protecting module, its input end is connected with DC power supply terminal, its output terminal is connected with the power input of described first processor, when electric by obtaining in instrument, the electric capacity of himself is charged, and be that first processor continues power supply at the appointed time by the described electric capacity after charging in the time of power-off, thereby make described first processor automatically be stored in described storage unit to data within the described stipulated time;
Described portable part is divided and is comprised: the second processor;
Display unit, is connected with the output terminal of described the second processor;
Second communication module, is connected with the input end of described the second processor, and described second communication module comprises corresponding to described the first communication interface realizing the second communication interface removably connecting;
Communication line, is detachably connected described second communication interface and described the first communication interface for realizing, thereby realizes data communication;
Display control module, be connected with described the second processor, described the second processor that by described display control module, the data in the described data storage cell of described first processor is sent to described portable part through described communication line, is then forwarded to described display unit and shows;
Be specially: by described the second processor, instruction is sent to described first processor, thereby make described first processor the data in described data storage cell be sent to described second processor of described portable part through described communication line, be then forwarded to described display unit and show.
Described situ part is positioned at on-the-spot side, can have one or more, when having when multiple, user is in order to observe the current Information Monitoring of each situ part, can carry portable part removably links together with situ part by described communication line, check the information collecting, so can reduce the structure complexity of the described situ part of on-the-spot side, be conducive to the maintenance in later stage.
As preferred embodiment, above-mentioned Combined type power instrument, wherein, described first processor is preferably and comprises the first single-chip microcomputer and the first memory being connected with described the first single-chip microcomputer, and described the second processor is second singlechip.In addition, described analogue collection module is preferably as voltage acquisition module, current acquisition module or voltage-to-current acquisition module.Described the first communication interface and described second communication interface are preferably RS232 interface, RS485 interface or RS422 interface.
As another kind of preferred implementation, on the basis of above-mentioned embodiment, can also comprise: overcurrent alarm module, is connected with described first processor, for output relay open command in the time over-current state being detected.Described analogue collection module is preferably ATT7022A computation chip.Described display unit is preferably and comprises LED drive circuit module and the LED display being connected with described LED drive circuit module.
Described communication line is preferably dismountable socket connection with being connected of described second communication interface and/or described the first communication interface; The interface of its three's interconnection is plug-in type interface.
Described loss protecting module is power failure protection circuit, its circuit connecting relation as shown in Figure 2, circuit specific works process is: while normally operation, voltage end VCC is charged, when capacitor C is in charged state, power supply by voltage end VCC through diode D1, diode D2 power supply, and now the base stage of triode Q1 is suitable with emitter current potential, so the input end of first processor is high level state, in the time that voltage end VCC has a power failure, capacitor C starts electric discharge and powers to first processor through diode D2, now the base stage of triode Q1 and emitter form pressure reduction, and the input end VCC first processor input end that starts first processor becomes low level and is triggered and interrupted by negative edge, due to the effect of diode D1, capacitor C is only powered for first processor and resistance R 1, its pressure drop is reduced to approximately 15 seconds decompression off-air times of first processor, if so the time of the default every minor tick save data of first processor is in 15 seconds, so just can meet the time requirement that data are preserved.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all embodiments.And among the protection domain that the apparent variation of being extended out thus or variation are still created in the utility model.
Claims (7)
1. a Combined type power instrument, is characterized in that comprising: situ part and portable part; It is characterized in that:
Described situ part comprises: first processor, has data storage cell, and the data timing being input in described first processor is preserved automatically;
Analogue collection module, with being connected of described first processor, gathers for the electric analogy amount to on-the-spot, and converts described electric analogy amount to numerical data and export described first processor to;
First communication module, is connected with the output terminal of described first processor, and wherein, described communication module also comprises the first communication interface removably connecting for realizing;
Switch quantity acquisition circuit, is connected with the input end of described first processor;
Loss protecting module, its input end is connected with DC power supply terminal, its output terminal is connected with the power input of described first processor, when electric by obtaining in instrument, the electric capacity of himself is charged, and be that first processor continues power supply at the appointed time by the described electric capacity after charging in the time of power-off, thereby make described first processor automatically be stored in described storage unit to data within the described stipulated time;
Described portable part is divided and is comprised: the second processor;
Display unit, is connected with the output terminal of described the second processor;
Second communication module, is connected with the input end of described the second processor, and described second communication module comprises corresponding to described the first communication interface realizing the second communication interface removably connecting;
Communication line, is detachably connected described second communication interface and described the first communication interface for realizing, thereby realizes data communication;
Display control module, be connected with described the second processor, described the second processor that by described display control module, the data in the described data storage cell of described first processor is sent to described portable part through described communication line, is then forwarded to described display unit and shows.
2. Combined type power instrument according to claim 1, is characterized in that:
Described first processor comprises the first single-chip microcomputer and the first memory being connected with described the first single-chip microcomputer, and described the second processor is second singlechip.
3. Combined type power instrument according to claim 1 and 2, is characterized in that:
Described analogue collection module is voltage acquisition module, current acquisition module or voltage-to-current acquisition module.
4. Combined type power instrument according to claim 1 and 2, is characterized in that:
Described the first communication interface and described second communication interface are RS232 interface, RS485 interface or RS422 interface.
5. Combined type power instrument according to claim 4, characterized by further comprising:
Overcurrent alarm module, is connected with described first processor, for output relay open command in the time over-current state being detected.
6. Combined type power instrument according to claim 1, is characterized in that: described analogue collection module is ATT7022A computation chip.
7. Combined type power instrument according to claim 1, is characterized in that: described display unit comprises LED drive circuit module and the LED display being connected with described LED drive circuit module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420178283.4U CN203858476U (en) | 2014-04-14 | 2014-04-14 | Combined electric power meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420178283.4U CN203858476U (en) | 2014-04-14 | 2014-04-14 | Combined electric power meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203858476U true CN203858476U (en) | 2014-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420178283.4U Expired - Fee Related CN203858476U (en) | 2014-04-14 | 2014-04-14 | Combined electric power meter |
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| CN (1) | CN203858476U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104574915A (en) * | 2015-01-23 | 2015-04-29 | 国家电网公司 | Carrier type power acquisition equipment and carrier test equipment thereof |
-
2014
- 2014-04-14 CN CN201420178283.4U patent/CN203858476U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104574915A (en) * | 2015-01-23 | 2015-04-29 | 国家电网公司 | Carrier type power acquisition equipment and carrier test equipment thereof |
| CN104574915B (en) * | 2015-01-23 | 2018-03-23 | 国家电网公司 | A kind of carrier system electric power acquisition equipment and its carrier test equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20170414 |
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| CF01 | Termination of patent right due to non-payment of annual fee |