CN205333715U - Multi -functional table of direct current based on TM7707 difference chip - Google Patents
Multi -functional table of direct current based on TM7707 difference chip Download PDFInfo
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- CN205333715U CN205333715U CN201521035510.9U CN201521035510U CN205333715U CN 205333715 U CN205333715 U CN 205333715U CN 201521035510 U CN201521035510 U CN 201521035510U CN 205333715 U CN205333715 U CN 205333715U
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Abstract
The utility model discloses a multi -functional table of direct current based on TM7707 difference chip, its characterized in that: including control system, power module, control system on be connected with signal sampling board, display module, button module, quantum digital input module, analog output module, on -off output module and the communication module that 20 two difference AD chip TM7707 constitute. The beneficial effects of the utility model are that to 20 based on the two difference AD chip TM7707 in position, realize the measurement to voltage, electric current, power, electric energy, and in the other direction just can measure, the switching value of deuterogamying input and output function can be measured by the accurate electrical parameter to among the direct current system to can realize remote monitoring and control.
Description
Technical field
This utility model relates to field of sludge treatment, particularly to a kind of direct current multifunctional meter based on TM7707 difference chip。
Background technology
Along with new forms of energy are increasingly taken seriously, photovoltaic generation quickly grew in recent years。In photovoltaic generating system, have a lot of DC link, at energy monitoring this part, it would be desirable to the energy consumption seeing multiple link is how many, to facilitate the efficiency to each link to be monitored。And at direct current this part, only DC current and DC voltage are measured, for power and electric energy, and the direction of power can not well be reflected, and brings very big inconvenience to measuring. all the time。Straight-flow system also needs to the monitoring state to switch, and when having served as stream, is required to timely tripping switch, and preferably realize separating brake and the combined floodgate of Remote straight-flow system breaker in middle。
Summary of the invention
Trouble and direct current energy and the power technical problem that direction cannot be measured in the past is measured for solving prior art, this utility model purpose is in that to provide one can measure DC current, voltage, power, electric energy and the direct current multifunctional meter based on TM7707 difference chip of the both forward and reverse directions of these four parameter。
For achieving the above object, the technical solution of the utility model is: a kind of direct current multifunctional meter based on TM7707 difference chip, it is characterized in that: include control system, power module, described control system is connected to the signal sampling plate (being called for short TM7707 signal sampling plate) of 20 Double deference A/D chip TM7707 compositions, display module, key-press module, switching input module, analog output module, switching value output module and communication module。
Preferably, described communication module adopts technical grade 485 chip, it may be achieved remotely monitoring and the distant control function to switch。
Preferably, described control system is MCU (MicrocontrollerUnit micro-control unit) system, the single-chip microcomputer STC12C5A16AD that described MCU system adopts acp chip to be macrocrystalline scientific & technical corporation。
Preferably, described power module is DC-DC power module, and voltage and current passage is isolated, and to prevent voltage both positive and negative polarity wrong line, and is easily caused instrument and damages。
Preferably, described display module is LED display module。
Preferably, described LED display module includes LED light and LED numeral method device。
Adopting technique scheme, the beneficial effects of the utility model described in the utility model are, based on 20 Double deference A/D chip TM7707, it is achieved to voltage, electric current, power, electric energy measurement, and both forward and reverse directions can be measured；Coordinate On-off signal and output function again, the electrical quantity in straight-flow system can accurately be measured, and remotely monitoring can be realized and control。
Accompanying drawing explanation
Fig. 1 is the direct current multifunctional meter theory diagram based on TM7707 difference chip described in the utility model。
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model embodiment is described further:
As shown in Figure 1, the direct current multifunctional meter of TM7707 difference chip described in the utility model, including control system, control system is connected to the signal sampling plate of 20 Double deference A/D chip TM7707 compositions, display module, key-press module, switching input module, switching value output module, Analog input mModule and communication interface, wherein:
20 described Double deference A/D chip TM7707 are that sky, Shenzhen microelectronics limited company produces；Described TM7707 signal sampling plate is used for gathering measurement 75mV signal (voltage signal that current diverter is changed out) and the voltage number of recognizing, the described voltage on TM7707 sampling plate, electric current are all completely isolated, damage will not be caused each other, and all and between master control system, have the impedance of 100K will not the microcomputer chip of core be interfered, playing the effect of isolation inlet wire interference, the stability making system is higher。
Described control system is MCU (MicrocontrollerUnit micro-control unit) system, the single-chip microcomputer STC12C5A16AD that described MCU system adopts acp chip to be macrocrystalline scientific & technical corporation；Described control system, for gathering the data of TM7707 chip, draws relevant electric parameter, and when there being fault to produce, control system exports to switching value output module；
Described switching input module is for detecting the opening and closing state of switch；
Described switching value output module is for receiving the actuating signal of control system；
Described communication module adopts technical grade 485 chip, it may be achieved remotely monitoring and the distant control function to switch；
Described key-press module is used for revising setting value；
Described display module includes LED light and LED numeral method device, and for receiving the signal of control system, LED instruction is for indicating deciliter state of switch and controlling deciliter state of output, and LED numeral method device is used for showing electric parameter。
The beneficial effects of the utility model are, based on 20 Double deference A/D chip TM7707, it is achieved to voltage, electric current, power, the measurement of electric energy, and can measure both forward and reverse directions。Coordinate On-off signal and output function again, the electrical quantity in straight-flow system can accurately be measured, and can remotely monitor and control。
Every technical staff's notice: although this utility model describes according to above-mentioned detailed description of the invention; but invention thought of the present utility model is not limited to that utility model; the repacking of any utilization inventive concept, all will include in this patent scope of patent protection。
Claims (7)
1. based on the direct current multifunctional meter of TM7707 difference chip, including control system, power module, it is characterised in that: described control system is connected to TM7707 signal sampling plate, display module, key-press module, switching input module, analog output module, switching value output module and communication module。
2. the direct current multifunctional meter based on TM7707 difference chip according to claim 1, it is characterised in that: described communication module adopts technical grade 485 chip。
3. the direct current multifunctional meter based on TM7707 difference chip according to claim 1, it is characterised in that: described control system is MCU system。
4. the direct current multifunctional meter based on TM7707 difference chip according to claim 3, it is characterised in that: the single-chip microcomputer STC12C5A16AD that described MCU system adopts acp chip to be macrocrystalline scientific & technical corporation。
5. the direct current multifunctional meter based on TM7707 difference chip according to claim 1, it is characterised in that: described power module is DC-DC power module。
6. the direct current multifunctional meter based on TM7707 difference chip according to claim 1, it is characterised in that: described display module is LED display module。
7. the direct current multifunctional meter based on TM7707 difference chip according to claim 6, it is characterised in that: described LED display module includes LED light and LED numeral method device。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521035510.9U CN205333715U (en) | 2015-12-14 | 2015-12-14 | Multi -functional table of direct current based on TM7707 difference chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521035510.9U CN205333715U (en) | 2015-12-14 | 2015-12-14 | Multi -functional table of direct current based on TM7707 difference chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205333715U true CN205333715U (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521035510.9U Active CN205333715U (en) | 2015-12-14 | 2015-12-14 | Multi -functional table of direct current based on TM7707 difference chip |
Country Status (1)
| Country | Link |
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| CN (1) | CN205333715U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085415A (en) * | 2018-07-03 | 2018-12-25 | 华立科技股份有限公司 | DC measurement tooling and method |
-
2015
- 2015-12-14 CN CN201521035510.9U patent/CN205333715U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085415A (en) * | 2018-07-03 | 2018-12-25 | 华立科技股份有限公司 | DC measurement tooling and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multi -functional table of direct current based on TM7707 difference chip Effective date of registration: 20200618 Granted publication date: 20160622 Pledgee: Bank of Communications Ltd. Pingxiang branch Pledgor: JIANGXI HJATIS POWER INDUSTRY Co.,Ltd. Registration number: Y2020360000055 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210811 Granted publication date: 20160622 Pledgee: Bank of Communications Ltd. Pingxiang branch Pledgor: JIANGXI HJATIS POWER INDUSTRY Co.,Ltd. Registration number: Y2020360000055 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: DC multi-function meter based on tm7707 differential chip Effective date of registration: 20210812 Granted publication date: 20160622 Pledgee: Bank of Communications Ltd. Pingxiang branch Pledgor: JIANGXI HJATIS POWER INDUSTRY Co.,Ltd. Registration number: Y2021980007594 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221207 Granted publication date: 20160622 Pledgee: Bank of Communications Ltd. Pingxiang branch Pledgor: JIANGXI HJATIS POWER INDUSTRY Co.,Ltd. Registration number: Y2021980007594 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |