CN211697943U - Data acquisition system - Google Patents
Data acquisition system Download PDFInfo
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- CN211697943U CN211697943U CN201922300634.XU CN201922300634U CN211697943U CN 211697943 U CN211697943 U CN 211697943U CN 201922300634 U CN201922300634 U CN 201922300634U CN 211697943 U CN211697943 U CN 211697943U
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Abstract
The utility model discloses a data acquisition system, including processing module, the flash memory module, the electric energy collection circuit module, the voltage collection module, the current collection module, the temperature collection module, the switch module, first pilot lamp module, the second pilot lamp module, ammeter module and communication module, a plurality of inputs of processing module are connected with electric energy collection circuit module output respectively, flash memory module output, the temperature collection module output, ammeter module output and communication module output, two outputs of processing module are connected with first pilot lamp module input, the switch module input, a plurality of inputs of electric energy collection circuit module are connected with second pilot lamp module output, voltage collection module output and current collection module output; the data acquisition system is connected with the power module. The technical scheme of the utility model can realize multi-functional integrated, simple to operate, and reduce equipment manufacturing cost and installation maintenance cost.
Description
Technical Field
The utility model relates to a data acquisition field, especially a data acquisition system.
Background
At present, the intelligent management of power of each country is implemented gradually, China is taken as a large population country and a large power utilization country, intelligent management is more necessary, and the intelligent management is greatly popularized based on the intellectualization of a power distribution network, and is in a pilot stage at present. Distribution network intellectualization is realized by firstly making the working condition informatization of distribution network equipment, namely obtaining the real-time information of the working condition of the distribution network equipment. The power distribution cabinet is used as a crucial link for business access, working condition information acquisition is particularly important, load detection, time-sharing partition and real-time dynamic acquisition and analysis of the power distribution cabinet can be achieved, real-time detection and management of power consumption of a film area can be achieved, waste of electric energy can be reduced to the maximum extent, reasonable power consumption is achieved, damage to power distribution equipment caused by overload power consumption can be avoided, and real distribution network intellectualization is achieved.
The equipment product that various operating modes were gathered to the switch board that joins in marriage the electrical room in the existing market also has not a lot, but the overwhelming majority is single-channel collection, and the unifunctional collection is to the point that the switch board need gather a lot, and current data acquisition equipment mainly has following shortcoming: (1) single-path acquisition, wherein each phase is acquired by an independent data acquisition device; (2) single-function acquisition, wherein a plurality of acquisition points of each phase are acquired by using an independent data acquisition device; (3) the equipment cost is high; (4) the installation cost is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims to provide a data acquisition system can realize multi-functional integrated, small, simple to operate, and reduction equipment manufacturing cost and installation maintenance cost.
The utility model provides a technical scheme that its problem adopted is:
an embodiment of the utility model provides a data acquisition system, include: the intelligent power supply comprises a processing module, a flash memory module, an electric energy acquisition circuit module, a voltage acquisition module, a current acquisition module, a temperature acquisition module, a switch module, a first indicator light module, a second indicator light module, an ammeter module and a communication module, wherein a plurality of input ends of the processing module are respectively connected with an output end of the electric energy acquisition circuit module, an output end of the flash memory module, an output end of the temperature acquisition module, an output end of the ammeter module and an output end of the communication module; the data acquisition system is connected with the power module.
According to some embodiments of the invention, the processing module comprises an FPGA programmer.
According to some embodiments of the utility model, the voltage acquisition module adopts three-phase four-wire voltage circuit.
According to the utility model discloses a some embodiments, current acquisition module adopts three-phase four-wire current circuit, three-phase four-wire current circuit includes current transformer.
According to some embodiments of the utility model, the second pilot lamp module adopts three-phase four-wire pilot lamp.
According to the utility model discloses a some embodiments, the temperature acquisition module includes the temperature acquisition circuit of the at least same kind, the temperature acquisition circuit is equipped with the temperature acquisition sensor.
According to some embodiments of the invention, the switch module comprises a 6-bit toggle switch.
According to some embodiments of the invention, the power module output voltage is 3.3V.
According to some embodiments of the utility model, still include the buzzer siren, buzzer siren input with processing module connects.
The embodiment of the utility model provides an in one or more technical scheme, following beneficial effect has at least: the utility model discloses a data acquisition system compares prior art's technical scheme, the utility model discloses a technical scheme is through setting up processing module, flash memory module, electric energy acquisition circuit module, voltage acquisition module, current acquisition module, temperature acquisition module, switch module, first pilot lamp module, second pilot lamp module, ammeter module and communication module, carries out the collection of heterogeneous function concentration to distribution equipment, reduces the volume when satisfying that the function integrated level is high, simple to operate, and reduce data acquisition equipment's manufacturing cost and installation maintenance cost.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a data acquisition system according to an embodiment of the present invention;
fig. 2 is a circuit diagram of a processing module according to another embodiment of the present invention;
fig. 3 is a circuit diagram of a first indicator light module according to another embodiment of the present invention;
fig. 4 is a circuit diagram of an electric energy collection circuit module according to another embodiment of the present invention;
fig. 5 is a circuit diagram of a voltage acquisition module according to another embodiment of the present invention;
fig. 6 is a circuit diagram of a current collection module according to another embodiment of the present invention;
fig. 7 is a circuit diagram of a second indicator light module according to another embodiment of the present invention;
fig. 8 is a circuit diagram of a temperature acquisition module according to another embodiment of the present invention;
fig. 9 is a circuit diagram of a switch module according to another embodiment of the present invention;
fig. 10 is a circuit diagram of an electricity meter module according to another embodiment of the present invention;
fig. 11 is a circuit diagram of a communication module according to another embodiment of the present invention;
fig. 12 is a circuit diagram of a power module according to another embodiment of the present invention.
Reference numerals:
the system comprises a data acquisition system 100, a processing module 110, a flash memory module 120, an electric energy acquisition circuit module 130, a voltage acquisition module 140, a current acquisition module 150, a temperature acquisition module 160, a switch module 170, a first indicator light module 180, a second indicator light module 190, an electricity meter module 200 and a communication module 210; a power module 300.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, etc., is the orientation or positional relationship shown on the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 to 12, an embodiment of the present invention provides a data acquisition system 100, which includes a processing module 110, a flash memory module 120, an electric energy acquisition circuit module 130, a voltage acquisition module 140, a current acquisition module 150, a temperature acquisition module 160, a switch module 170, a first indicator light module 180, a second indicator light module 190, an electricity meter module 200, and a communication module 210, wherein a plurality of inputs of the processing module 110 are respectively connected to an output of the electric energy acquisition circuit module 130, an output of the flash memory module 120, an output of the temperature acquisition module 160, an output of the electricity meter module 200, and an output of the communication module 210, two outputs of the processing module 110 are respectively connected to an input of the first indicator light module 180 and an input of the switch module 170, a plurality of input ends of the electric energy acquisition circuit module 130 are respectively connected with the output end of the second indicator light module 190, the output end of the voltage acquisition module 140 and the output end of the current acquisition module 150; the data acquisition system 100 is connected to a power module 300.
In this embodiment, the data acquisition system 100 is a system based on a microprocessor (MCU for short), the processing module 110 may include an FPGA programmable processing chip, and the power module 300 is configured to supply power to the data acquisition system 100, and a 24V dc voltage may be input from the outside. The electric energy collection circuit module 130 is respectively connected with the voltage collection module 140, the current collection module 150 and the second indicator light module 190, the electric energy collection circuit module 130 is connected with the processing module 110 again, collects current and voltage on the cable in real time, displays the voltage state of the data collection system 100 in real time through the second indicator light module 190, and can set the state of the second indicator light to be turned on for a long time when the second indicator light is powered on, and is turned off when the second indicator light is not powered on.
The processing module 110 is respectively connected with the flash memory module 120, the temperature acquisition module 160, the electricity meter module 200 and the communication module 210, and the flash memory module 120 can cache or directly store data in the data acquisition system 100; the temperature acquisition module 160 may acquire the cable temperature in real time to determine the current cable loading condition. In this embodiment, the ammeter module 200 can be provided with an ammeter RS485, and the ammeter RS485 interface is connected to the ammeter RS485 serial port, and then the appropriate baud rate and the corresponding parameters are configured, so that the real-time data of the ammeter can be acquired in real time. In other embodiments, the sensor with the RS485 interface can be connected, and the sensor is a reusable RS485 interface, so that the environmental parameters of the sensor can be acquired in real time, and data can be provided for a background to perform more accurate intelligent management. The communication module 210 may be an upper computer (e.g., a computer, a notebook, etc.) and is connected to the processing module 110 through an RS485 communication data interface of the upper computer, so as to not only upload the collected data to the upper computer, but also receive an execution instruction issued by the upper computer, so as to ensure that the collected data can be uploaded to the management platform normally. In other embodiments, the RS485 port of the upper computer is in a bus mode, and can be connected to a plurality of data acquisition systems 100 with different addresses through one interface, so as to receive and display acquired data. The processing module 110 is further connected to the first indicator light module 180 and the switch module 170, in this embodiment, the switch module 170 may be set as a multi-bit address dial switch, and the local address of the data acquisition system 100 is set to ensure that data collision does not occur when a plurality of data acquisition systems 100 are connected to the bus of the upper computer at the same time, so as to ensure that data is not lost and improve security. Referring to fig. 3, the first indicator light module 180 is arranged to reflect the operation state of the data acquisition system 100, and the first indicator light state is observed to determine whether the data acquisition system 100 normally operates, for example, the first indicator light is set to be normally on to indicate normal operation, and is turned off to indicate abnormal operation; or the first indicator light is set to be normally on to indicate normal work, and the first indicator light flickers to indicate abnormal work; or the first indicator light is set to be on green to indicate normal work, and the first indicator light is set to be on red to indicate abnormal work, and the like.
The embodiment of the utility model provides an in one or more technical scheme, following beneficial effect has at least: the utility model discloses a data acquisition system 100, compare prior art's technical scheme, the utility model discloses a technical scheme is through setting up processing module 110, flash memory module 120, electric energy collection circuit module 130, voltage acquisition module 140, current acquisition module 150, temperature acquisition module 160, switch module 170, first pilot lamp module 180, second pilot lamp module 190, ammeter module 200 and communication module 210, carry out the collection of heterogeneous function concentration to distribution equipment, reduce the volume when satisfying that the function integrated level is high, high durability and convenient installation, and reduce data acquisition equipment's manufacturing cost and installation maintenance cost.
According to some embodiments of the present invention, the processing module 110 includes a Field Programmable Gate Array (FPGA) programmable device. The FPGA can realize data parallel processing, has flexible logic units, high integration level and wide application range, is compatible with the advantages of a Programmable Logic Device (PLD) and a general gate array (FPGA), and can realize larger-scale circuits. In this embodiment, an FPGA (field programmable gate array) is used as a processing chip of the data acquisition system 100, and the intelligent management of the power distribution equipment is realized by performing parallel processing on the acquired real-time voltage, current, electric power, temperature and other data, uploading the data to the communication module 210 according to a fixed data protocol, and dynamically displaying various data of the power distribution equipment and monitoring the state of the power distribution equipment in real time through the communication module 210.
Referring to fig. 5, according to some embodiments of the present invention, voltage acquisition module 140 employs a three-phase four-wire voltage circuit. In this embodiment, the voltage collecting module 140 adopts a three-phase four-wire voltage circuit, and collects the cable voltage in real time by setting an a/B/C/N phase line voltage collecting line with an access voltage of 220V/380V. The main functions of the voltage transformers PT1, PT2 and PT3 are to realize electrical isolation between two input ends and ensure monitoring safety. The transient suppression diodes TVS16 and TVS17 are used to protect the internal circuits. Specifically, the three-phase four-wire voltage circuit comprises voltage transformers PT1, PT2 and PT3, wherein the A phase of three phases is taken as an example for illustration, and the structures and the working principles of the B phase, the C phase and the A phase are the same. The current-limiting resistors R54 and R55 are respectively connected in series between one end of a primary winding of the voltage transformer PT1 and a live wire A, and the current-limiting resistors R58 and R59 are respectively connected in series between one end of the primary winding of the voltage transformer PT1 and a zero wire. The capacitor C42 and the capacitor C43 are connected in series between two output ends of a secondary winding of the voltage transformer PT 1; the resistor R56 and the resistor R57 are connected in series between two output ends of a secondary winding of the voltage transformer PT 1; the transient suppression diode TVS16 and the transient suppression diode TVS17 are connected in series between two output ends of a secondary winding of the voltage transformer PT 1; and the ground lines are respectively connected between the capacitor C42 and the capacitor C43, between the resistor R56 and the resistor R57, and between the transient suppression diode TVS16 and the transient suppression diode TVS 17. The voltage on the cable is collected in real time through the three-phase four-wire voltage circuit, each phase voltage is collected as an independent alternating current voltage signal, and fault information such as overvoltage, undervoltage, open phase, interruption, phase error and the like is judged by synthesizing three signal values through the MCU main control circuit in the processing module 110, so that real-time monitoring on the power distribution equipment is realized.
Referring to fig. 6, according to some embodiments of the present invention, current collection module 150 employs a three-phase four-wire current circuit, which includes a current transformer. In this embodiment, a 400: the current transformer with the 0.1A transformation ratio collects current through the current transformer and transmits data to the electric energy collecting circuit module 130 for processing so as to accurately collect current flowing on the cable. In other embodiments, the cable voltage collected via the three-phase four-wire voltage is calculated according to the power calculation formula: W-UIt; w is ═ I2Rt；W＝U2t/R; w ═ Pt, where W represents the amount of electricity used; u represents a rated voltage; i represents a rated current; t represents the working time; r represents a resistance; p represents rated power, and can accurately acquire electric power of the power distribution equipment and other multiple electric parameters such as active power, power factor and the like. In this embodiment, the accuracy can be 0.1%, and the current is collectedThe module 150 may be used as a function of a power meter.
Referring to fig. 7, according to some embodiments of the present invention, the second indicator light module 190 employs a three-phase four-wire indicator light. In this embodiment, the second indicator light module 190 adopts a three-phase four-wire indicator light, and the indicator lights D5, D7 and D9 are arranged on the a/B/C phase line to indicate the voltage state of the a/B/C phase in real time, and if the second indicator light is set to be on for a long time, the second indicator light is off if not powered, that is, D5 is on, which indicates that the a-phase circuit is powered on, and is off if not powered; d7 is on, which shows that the B phase circuit is electrified, and is off when not electrified; d9 lights up indicating that the C-phase circuit is energized and goes off when not energized.
According to some embodiments of the utility model, temperature acquisition module 160 includes the temperature acquisition circuit of the at least kind all the way, and the temperature acquisition circuit is equipped with the temperature acquisition sensor. In this embodiment, four temperature acquisition circuits are adopted, each temperature acquisition circuit is provided with a temperature acquisition sensor, and referring to fig. 8, the temperature of the cable head is monitored by externally connecting a 10K Ω NTC resistor. The temperature acquisition sensor and the voltage acquisition lines on the four phase lines of A/B/C/N are fixed on a special three-in-one clamp together, the clamp can be clamped at the position of a low-voltage copper bar or a cable head, and the clamp is made of metal parts due to the fact that metal is easy to conduct electricity, for example, the clamp can be made of nickel plating or pure copper; the contact parts of the temperature sensor and the voltage acquisition line with the clamp are also all metal parts. Through a temperature sensor of respectively arranging on four phase lines, temperature sensor's front end, the front end and the copper bar of voltage acquisition line or cable head voltage equal, thereby gather voltage and temperature on each phase line, the processing of circuit module 130 is gathered to the rethread electric energy, the MCU among the messenger processing module 110 can accurately gather the voltage and the temperature of copper bar or cable head, the load condition of current cable conductor can be judged through the temperature of the copper bar or cable head of gathering, and the practicality has.
Referring to fig. 9, according to some embodiments of the present invention, the switch module 170 includes a 6-bit toggle switch. In this embodiment, by setting the 6-bit address dial switch, the local address of the data acquisition system 100 is set, specifically, 0 to 64 address bits can be supported, so that it is ensured that the data acquisition systems 100 can be connected to the communication module 210 at the same time, for example, the data acquisition system can be connected to an RS485 bus of an upper computer, thereby avoiding data collision, ensuring that data is not lost, and improving security.
According to some embodiments of the present invention, the power module 300 output voltage is 3.3V. In this embodiment, various data of the low voltage distribution cabinet may be collected by the data collection system 100. Specifically, the power module 300 inputs a power voltage of 24V, converts the power voltage of 24V into a voltage of 5V for output through the chip U1, and then converts the voltage of 5V into 3.3V, referring to fig. 12, where the calculation formula is Vout0.6 ═ (1+ R1/R2), where R1 is zero ohm resistance with an accuracy of 1%; r2 is 10K omega, the precision is 5%; and finally, the data is output to the data acquisition system 100, so that the data acquisition system 100 is powered to acquire various data such as voltage, current, electric power, temperature and the like of the low-voltage power distribution cabinet, and the intelligent management of the power distribution cabinet is realized.
According to some embodiments of the utility model, still include the buzzer siren, the buzzer siren input is connected with processing module 110. Through setting up the buzzer siren and being connected with processing module 110, be in unusual during operation at distribution equipment, can send out the police dispatch newspaper through the buzzer siren to transmit alarm information to terminal, accessible wireless transmission or wire transmission, take place unusually with reminding maintainer distribution equipment, in time maintain distribution equipment, guarantee safe power consumption, have the practicality.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "specifically," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A data acquisition system, comprising: the intelligent power supply comprises a processing module, a flash memory module, an electric energy acquisition circuit module, a voltage acquisition module, a current acquisition module, a temperature acquisition module, a switch module, a first indicator light module, a second indicator light module, an ammeter module and a communication module, wherein a plurality of input ends of the processing module are respectively connected with an output end of the electric energy acquisition circuit module, an output end of the flash memory module, an output end of the temperature acquisition module, an output end of the ammeter module and an output end of the communication module; the data acquisition system is connected with the power module.
2. A data acquisition system according to claim 1, wherein: the processing module comprises an FPGA (field programmable gate array) programmable logic controller.
3. A data acquisition system according to claim 1, wherein: the voltage acquisition module adopts a three-phase four-wire voltage circuit.
4. A data acquisition system according to claim 1 or 3, characterized by: the current acquisition module adopts three-phase four-wire current circuit, three-phase four-wire current circuit includes current transformer.
5. A data acquisition system according to claim 4, wherein: the second indicator light module adopts three-phase four-wire indicator light.
6. A data acquisition system according to claim 4, wherein: the temperature acquisition module comprises at least one path of temperature acquisition circuit, and the temperature acquisition circuit is provided with a temperature acquisition sensor.
7. A data acquisition system according to claim 1, wherein: the switch module comprises a 6-bit dial switch.
8. A data acquisition system according to claim 1, wherein: the output voltage of the power supply module is 3.3V.
9. A data acquisition system according to claim 1, wherein: still include the buzzer siren, buzzer siren input with processing module connects.
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| CN201922300634.XU CN211697943U (en) | 2019-12-18 | 2019-12-18 | Data acquisition system |
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| CN201922300634.XU CN211697943U (en) | 2019-12-18 | 2019-12-18 | Data acquisition system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200984A (en) * | 2021-12-10 | 2022-03-18 | 黄山奥仪电器有限公司 | 15 way combination unification electric current type temperature controller |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200984A (en) * | 2021-12-10 | 2022-03-18 | 黄山奥仪电器有限公司 | 15 way combination unification electric current type temperature controller |
| CN114200984B (en) * | 2021-12-10 | 2022-09-27 | 黄山奥仪电器有限公司 | 15 way combination unification electric current type temperature controller |
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