CN202230119U - Novel two-channel intelligent electrical parameter measuring module - Google Patents
Novel two-channel intelligent electrical parameter measuring module Download PDFInfo
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- CN202230119U CN202230119U CN2011203665193U CN201120366519U CN202230119U CN 202230119 U CN202230119 U CN 202230119U CN 2011203665193 U CN2011203665193 U CN 2011203665193U CN 201120366519 U CN201120366519 U CN 201120366519U CN 202230119 U CN202230119 U CN 202230119U
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Abstract
The utility model discloses a novel two-channel intelligent electrical parameter measuring module which comprises a power supply system, a MCU, a communication circuit, a module address, a memory, a status-indicating lamp driving circuit, an electrical parameter sampling circuit, an external input circuit, and a power-down protecting circuit; the power supply system provides power supply for the whole module; a device to be measured is connected with the electrical parameter sampling circuit through an input signal conditioning circuit; the MCU is respectively connected with the electrical parameter sampling circuit, the communication circuit, the module address, the memory, the status-indicating lamp driving circuit, the input circuit, and the power-down protecting circuit. The utility model has strong specificity and high precision, is safe and reliable, has low price, and is widely applicable to the fields of electronics, industrial measurement and control, electrical equipment detection, and the like.
Description
Technical field
The utility model relates to technical fields such as industrial measurement and control, tame electro-detection and software, is specifically related to a kind of new type double passage intelligence electric parameter measurement module.
Background technology
In the energising course of work; Need carry out real-time online measuring to all kinds of different electrical quantitys such as plant capacity with electric standard; Therefore the electrical equipment manufacturer presses for a kind of high efficiency smart, safe and reliable, light small and exquisite, alternating current parameter detecting instrument that can compatible different utilization voltages of while when product detects; Effectively each parameter is measured, like voltage, electric current, power and power factor etc.At present domestic also have fairly perfect that some enterprises do aspect electric parameter measurement, but how many products exists some problems, such as product specificity is strong, precision is low, poor anti jamming capability etc.
The utility model content
The utility model is to the problems referred to above; A kind of new type double passage intelligence electric parameter measurement module is provided; Its purpose is: the electric parameter measurement scheme of mixing the electricity consumption product is provided; Solve and measure the problem of two product electrical properties simultaneously, and can accurately measure instantaneous voltage, electric current and parameters such as calculating IRMS, VRMS, instantaneous power, active power, reactive power and power factor.
The technical solution of the utility model:
A kind of new type double passage intelligence electric parameter measurement module; It is characterized in that: said new type double passage intelligence electric parameter measurement module comprises power-supply system, MCU, telecommunication circuit, module's address, storer, driving circuit for status display lamp, electrical quantity sample circuit, outside input circuit and power down protection circuit; Said power-supply system is that whole module provides power supply, and equipment under test is connected with the electrical quantity sample circuit through the input signal conditioning circuit; Said MCU is connected with electrical quantity sample circuit, telecommunication circuit, module's address, storer, driving circuit for status display lamp, input circuit and power down protection circuit respectively; The voltage and current passage of said electrical quantity sample circuit is furnished with 24 bit AD sample circuit, programmable gain amplifier respectively; Said power down protection circuit adopts the inner low pressure of MCU to detect interrupt pin and triggers through threshold voltage; Said telecommunication circuit is based on common RS485 telecommunication circuit, installs an anti-phase triode additional at the control end of ADM485 chip, can solve effectively that certain module in the same bus goes wrong and the drawback of disturbing whole 485 bus communications; Said electric parameter measurement module is provided with two groups of electrical quantity Acquisition Circuit, and every group of input signal conditioning circuit adopts the mode of EM coupling to input to the electrical quantity Acquisition Circuit.
Said electric parameter measurement module also comprises embedded software, and The software adopted is carried out the high assembly language of efficient and programmed.
Said power-supply system adopts linear 5V stabilized voltage supply.
Said electrical quantity sample circuit adopts the inner CS5463 chip that has 24 A/D change-over circuits, is furnished with the built-in reference voltage circuit of 2.5V simultaneously.
Said MCU adopts the STC12C5A32S2 chip.
Said driving circuit for status display lamp adopts the ULA2003 chip, cooperates storer, and system can store the state of each pilot lamp, the phenomenon that resets occurs in order to the Shi Buhui that powers on next time.
Said storer adopts conventional type 24 series memories, is used for memory module calibration parameter and input/output state parameter.
Said MCU and electrical quantity sample circuit carry out data transmission with the SPI communication mode.
Said electric parameter measurement module also has the address setting function; Adopt hardware address, support a plurality of modules, multi-route measuring temperature, single bus can connect 1024 modules at most; Module can also adopt software address simultaneously; Promptly in the inner EEPROM of single-chip microcomputer, select a bytes of memory district, module's address is write, when module powers on, this address read is come out as module's address.
The beneficial effect of the utility model:
The utility model specificity is strong, and precision is high, and is safe and reliable, and cheap, is widely used in fields such as electronics, industrial measurement and control, electrical equipment detections.
Description of drawings
Accompanying drawing 1 is the theory diagram of the utility model module whole
Accompanying drawing 2 is the utility model electric supply system circuit diagram
Accompanying drawing 3 is the utility model electrical quantity sample circuit figure
Accompanying drawing 4 is the utility model MCU control circuit figure
Accompanying drawing 5 is the utility model RS485 telecommunication circuit figure
Accompanying drawing 6 is the outside input circuit figure of the utility model
Accompanying drawing 7 is the utility model power down protection circuit diagram
Embodiment
Specify the utility model below in conjunction with embodiment.
As shown in Figure 1; New type double passage intelligence electric parameter measurement module comprises power supply (DC-DC modular converter), input signal conditioning circuit, MCU, telecommunication circuit, module's address, storer, driving circuit for status display lamp, electrical quantity sample circuit, outside input circuit and power down protection circuit; Said power supply is that whole module provides power supply; Equipment under test is connected with the electrical quantity sample circuit through the input signal conditioning circuit, and said MCU is connected with electrical quantity sample circuit, telecommunication circuit, module's address, storer, driving circuit for status display lamp, input circuit and power down protection circuit respectively.
As shown in Figure 2, power supply is supplied power to modular circuit through the DC-DC modular converter.
Shown in Fig. 3 and 4; Module is carried out the EM coupling conversion through two groups of signal conditioning circuits to voltage, the current signal of importing; Input to electrical quantity acquisition chip CS5463 through two-way electrical quantity Acquisition Circuit again; The serial line interface of CS5463 has 2 control line CS, SCLK and 2 data line SDI, SDO external connection, and MCU sends the SDI line of calibration command to CS5463, and CS5463 receives behind the calibration command according to the different different calibration operations of calibration command execution; And the parameter after will calibrating stores relevant register into, and MCU directly reads this calibration parameter from this register.
As shown in Figure 5, on the basis of common RS485 telecommunication circuit,, offer the ADM485 chip after the control signal process anti-phase with single-chip microcomputer at anti-phase triode Q1 of control end interpolation of ADM485 chip.
As shown in Figure 6, the mode that one tunnel external signal input circuit adopts photoelectricity to isolate is imported.
Pin P4.6 pin with low pressure detection interrupt function as shown in Figure 7, that the STC12C5A32S2 chip is exclusive matches its threshold voltage through two suitable divider resistances.
Concrete measuring process:
Shown in Fig. 1 to 7; Power supply is supplied power to whole modular circuit through the DC-DC modular converter; Equipment under test inputs to electrical quantity acquisition chip CS5463 through the input signal conditioning circuit with external signal, and MCU sends the SDI line of calibration command to CS5463, and CS5463 carries out different calibration operations according to different calibration commands after receiving calibration command; And the parameter after will calibrating stores relevant register into; MCU directly reads this calibration parameter from this register, then the supplemental characteristic that reads is uploaded to slave computer software through the RS485 communication mode, displays it through man-machine interface.If the circuit sudden power when the voltage step-down arrives its threshold voltage, triggers low pressure and detects interruption, in interruption, preserve important parameters, prevent that sudden power from causing loss of data.The electric parameter measurement module is provided with two-way electrical quantity Acquisition Circuit, can also measure the electrical quantity of two Different products simultaneously.
Claims (9)
1. new type double passage intelligence electric parameter measurement module; It is characterized in that: said new type double passage intelligence electric parameter measurement module comprises power-supply system, MCU, telecommunication circuit, module's address, storer, driving circuit for status display lamp, electrical quantity sample circuit, outside input circuit and power down protection circuit; Said power-supply system is that whole module provides power supply, and equipment under test is connected with the electrical quantity sample circuit through the input signal conditioning circuit; Said MCU is connected with electrical quantity sample circuit, telecommunication circuit, module's address, storer, driving circuit for status display lamp, input circuit and power down protection circuit respectively; The voltage and current passage of said electrical quantity sample circuit is furnished with 24 bit AD sample circuit, programmable gain amplifier respectively; Said power down protection circuit adopts the inner low pressure of MCU to detect interrupt pin and triggers through threshold voltage; Said telecommunication circuit is based on the common RS485 telecommunication circuit, installs an anti-phase triode additional at the control end of ADM485 chip; Said electric parameter measurement module is provided with two groups of electrical quantity Acquisition Circuit, and every group of input signal conditioning circuit adopts the mode of EM coupling to input to the electrical quantity Acquisition Circuit.
2. a kind of new type double passage intelligence electric parameter measurement module as claimed in claim 1, it is characterized in that: said electric parameter measurement module also comprises embedded software, and the The software adopted assembly language is programmed.
3. a kind of new type double passage intelligence electric parameter measurement module as claimed in claim 1, it is characterized in that: said power-supply system adopts linear 5V stabilized voltage supply.
4. a kind of new type double passage intelligence electric parameter measurement module as claimed in claim 1, it is characterized in that: said electrical quantity sample circuit adopts the inner CS5463 chip that has 24 A/D change-over circuits, is furnished with the built-in reference voltage circuit of 2.5V simultaneously.
5. a kind of new type double passage intelligence electric parameter measurement module as claimed in claim 1, it is characterized in that: said MCU adopts the STC12C5A32S2 chip.
6. a kind of new type double passage intelligence electric parameter measurement module as claimed in claim 1, it is characterized in that: said driving circuit for status display lamp adopts the ULA2003 chip.
7. a kind of new type double passage intelligence electric parameter measurement module as claimed in claim 1, it is characterized in that: said storer adopts conventional type 24 series memories, is used for memory module calibration parameter and input/output state parameter.
8. a kind of new type double passage intelligence electric parameter measurement module as claimed in claim 1, it is characterized in that: said MCU and electrical quantity sample circuit carry out data transmission with the SPI communication mode.
9. a kind of new type double passage intelligence electric parameter measurement module as claimed in claim 1, it is characterized in that: said electric parameter measurement module also has the address setting function, adopts hardware address; Support a plurality of modules, multi-route measuring temperature; Single bus can connect 1024 modules at most, and module can also adopt software address simultaneously, promptly in the inner EEPROM of single-chip microcomputer, selects a bytes of memory district; Module's address is write, when module powers on, this address read is come out as module's address.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203665193U CN202230119U (en) | 2011-09-29 | 2011-09-29 | Novel two-channel intelligent electrical parameter measuring module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203665193U CN202230119U (en) | 2011-09-29 | 2011-09-29 | Novel two-channel intelligent electrical parameter measuring module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202230119U true CN202230119U (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203665193U Expired - Fee Related CN202230119U (en) | 2011-09-29 | 2011-09-29 | Novel two-channel intelligent electrical parameter measuring module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202230119U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102819279A (en) * | 2012-07-27 | 2012-12-12 | 江苏中科君达电子科技有限公司 | Infrared dynamic data collection box |
| CN104090177A (en) * | 2014-06-11 | 2014-10-08 | 国家电网公司 | Power network operation data intelligent test analyzer |
-
2011
- 2011-09-29 CN CN2011203665193U patent/CN202230119U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102819279A (en) * | 2012-07-27 | 2012-12-12 | 江苏中科君达电子科技有限公司 | Infrared dynamic data collection box |
| CN104090177A (en) * | 2014-06-11 | 2014-10-08 | 国家电网公司 | Power network operation data intelligent test analyzer |
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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: 20120523 Termination date: 20150929 |
|
| EXPY | Termination of patent right or utility model |