CN105628082A - Data acquisition device for furniture warehouses - Google Patents
Data acquisition device for furniture warehouses Download PDFInfo
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- CN105628082A CN105628082A CN201410575721.5A CN201410575721A CN105628082A CN 105628082 A CN105628082 A CN 105628082A CN 201410575721 A CN201410575721 A CN 201410575721A CN 105628082 A CN105628082 A CN 105628082A
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Abstract
The invention relates to the technical field of data acquisition, and specifically discloses a data acquisition device for furniture warehouses. The data acquisition device comprises a microprocessor, a power supply module, a communication module, an optical coupling isolation module, a signal conditioning module, a switching input module, an analog input module and an alarm module, wherein the switching input module is connected to the microprocessor through the optical coupling isolation module, the analog input module is connected to the microprocessor through the signal conditioning module, the microprocessor is further connected with the power supply module, the communication module and the alarm module, and the microprocessor includes an AD conversion module of which the input end is connected with the output end of the signal conditioning module. The data acquisition device can cooperate with temperature, humidity, smoke and other sensors to acquire the temperature and humidity data and smoke data within a warehouse, the warehouse data can be transmitted back to a control center through the communication module to enable the control center to know the status of the warehouse in a timely manner, and the alarm module can be started to alarm when acquired data is abnormal. Therefore, the device is of high safety.
Description
Technical field
The present invention relates to data acquisition technology field, in particular it relates to a kind of data acquisition unit for furniture storehouse.
Background technology
Data acquisition technology general sensor acquisition signal, and host computer or the remote control center at scene it is transferred to by wired or wireless mode, it gathers data and controls very convenient, has very strong practicality in industry, space flight, military affairs etc. The signal type gathered in data acquisition technology mainly includes voltage signal, current signal, frequency signal and on-off model, development along with modern technologies, the voltage and current signal of the main outputting standard of sensor for gathering signal, and sensor to be the signal of telecommunication that outside non-electric charge quantity signalling converts to standard export.
Along with modern development in science and technology, data acquisition technology is widely used in various fields and develops. The precision of data acquisition, capacity of resisting disturbance, safety and the aspects such as compatibility that communicate are had higher requirement simultaneously.
At furniture industry, furniture storehouse is the main place depositing furniture raw material and finished product, and these places have higher fire prevention, waterproof requirement, and hand inspection exists careless omission unavoidably.
Summary of the invention
The technical problem to be solved is to provide a kind of data acquisition unit for furniture storehouse, and these data acquisition unit Real-time Collection storehouse data being used for furniture storehouse are returned to control centre, it is simple to control centre understands storehouse situation in time.
This invention address that the problems referred to above be the technical scheme is that
Data acquisition unit for furniture storehouse includes microprocessor, power module, communication module, light-coupled isolation module, Signal-regulated kinase, switching input module, Analog input mModule, alarm module, described switching input module connects microprocessor by light-coupled isolation module, described Analog input mModule is connected to microprocessor by Signal-regulated kinase, described microprocessor is also respectively connected with power module, communication module, alarm module, described microprocessor also includes AD conversion module, the input of this AD conversion module is connected with the outfan of Signal-regulated kinase.
As a further improvement on the present invention, filtration module that described Signal-regulated kinase includes being sequentially connected with, linear optical coupling isolation module, clipping module, the outfan of clipping module connects the input of AD conversion module.
Preferably, described linear optical coupling isolation module adopts the linear optical coupling of HCNR201 model.
Another improvement as the present invention, described switching input module includes photo-coupler U1, electric capacity C1, resistance R1, resistance R2, after electric capacity C1 and resistance R1 series connection, resistance R1 connects 12V power supply, electric capacity C1 connecting valve amount signal input port, 2 inputs of photo-coupler U1 are connected in parallel on electric capacity C1 two ends, one output head grounding, another outfan is simultaneously connected with input and the resistance R2 of microprocessor, and the resistance R2 other end connects 3.3V power supply.
Preferably, described photo-coupler U1 adopts TLP521 photoelectrical coupler.
Preferably, described microprocessor adopts the STM32F101 enhancement mode flash memory microcontroller of ST Microelectronics.
To sum up, the invention has the beneficial effects as follows: the data acquisition unit for furniture storehouse of the present invention can gather voltage, electric current and on-off model, the humiture gathered in storehouse and smoke data can be coordinated with the sensor such as temperature, humidity, smog, and it is returned to control centre by communication module transmission storehouse data, it is easy to control centre and understands storehouse situation in time, can starting alarm module when gathering data exception to report to the police, safety is high.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the present invention;
Fig. 2 is the structural representation of switching input module.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is done detailed description further, but embodiments of the present invention are not limited to this.
As shown in Figure 1, data acquisition unit for furniture storehouse, including microprocessor, power module, communication module, light-coupled isolation module, Signal-regulated kinase, switching input module, Analog input mModule, alarm module, described switching input module connects microprocessor by light-coupled isolation module, described Analog input mModule is connected to microprocessor by Signal-regulated kinase, described microprocessor is also respectively connected with power module, communication module, alarm module, described microprocessor also includes AD conversion module, the input of this AD conversion module is connected with the outfan of Signal-regulated kinase.
Signals collecting mainly includes voltage signal, current signal, frequency signal and on-off model, development along with modern technologies, the voltage and current signal of the main outputting standard of sensor, and sensor to be the signal of telecommunication that outside non-electric charge quantity signalling converts to standard export, data acquisition unit in the present embodiment can with temperature sensor, humidity sensor, Smoke Sensor is connected, gather the voltage of these sensors output simultaneously, electric current, On-off signal output signal, and each part works alone, all adopt Signal Isolation Technology, data acquisition unit adopts RS485 to communicate with host computer, use MODBUS agreement as communication protocol, it is easy to data acquisition unit and realizes data sharing with other industrial equipments.
Below each main module structure is described in detail:
Described microprocessor adopts the STM32F101 enhancement mode flash memory microcontroller of ST Microelectronics, uses the STM32F101 that sexual valence is higher as core processor, and clock multiplier post processing speed is up to 36MHz; Inside carries 12 AD conversion passages, it is ensured that the speed of data sampling and process and precision. STM32F101 includes crystal oscillating circuit, reset circuit and SW program debugging interface circuit, crystal oscillating circuit is mainly the clock that system work provides required, by the clock register within initial configuration STM32F101, can by external clock frequency frequency multiplication to 36MHz; Hand-reset when reset circuit is mainly used in preventing data acquisition unit program fleet or crashing, inside program, add watchdog reset simultaneously, program normally feeds Canis familiaris L. when properly functioning, and when program fleet, data acquisition unit also can be automatically performed reset, makes program re-execute; SW program adjusts interface circuit, is mainly used in developer and STM32F101 is programmed and in-circuit emulation debugging, the software design of data acquisition device. Owing to STM32F101 cost performance is higher, Embedded aboundresources, external hardware circuit design can be greatly simplified when designing data acquisition unit.
Filtration module that described Signal-regulated kinase includes being sequentially connected with, linear optical coupling isolation module, clipping module, the outfan of clipping module connects the input of AD conversion module.
Data acquisition unit in the present embodiment is operable with DC12V, but owing to STM32F101 running voltage is 3.3V, therefore DC+3.3V is transferred again to after also needing to transfer 12V power supply to DC+5V by power module, supply STM32F101 uses, power module adopts conventional LDO circuit, repeats no more its circuit diagram in the present embodiment.
As shown in Figure 2, described switching input module includes photo-coupler U1, electric capacity C1, resistance R1, resistance R2, after electric capacity C1 and resistance R1 series connection, resistance R1 connects 12V power supply, electric capacity C1 connecting valve amount signal input port IN, 2 inputs of photo-coupler U1 are connected in parallel on electric capacity C1 two ends, one output head grounding, another outfan STM32-I/O is simultaneously connected with input and the resistance R2 of microprocessor, and the resistance R2 other end connects 3.3V power supply. The I/O mouth of STM32F101 can be configured to switching value I/O mouth, resistance R1 and electric capacity C1 and constitute low-pass first order filter filter away high frequency noise, reduces the burr of signal. Described photo-coupler U1 adopts TLP521 photoelectrical coupler.
Switch value input interface is mainly used in gathering external switch amount signal, and this partial circuit uses TLP521 optocoupler to isolate, it is ensured that the safety of signal sample circuit, can reduce circuit interference simultaneously. On-off model inputs from IN, through the GPIO mouth of optocoupler U1 output to STM32, it is achieved the detection to outside on-off model.
Described communication module adopts RS485 communication module, the main data transmission realizing gathering of RS485 communication, for ensureing the safety of data transmission and the compatibility communicated, hardware designs use SP3485 as transceiver controller, use TLP521 optocoupler to isolate, it is ensured that the safety of data collecting card hardware communications simultaneously; Software design use the MODBUS agreement of industrial standard as RS485 communication protocol, it is ensured that the accuracy of compatibility that system is good and data transmission.
Described linear optical coupling isolation module adopts the linear optical coupling of HCNR201 model. The signal sample circuit of RS485 telecommunication circuit and analog quantity has been used that Signal Isolation Technology by the present embodiment, the power supply of supply RS485 chip operation and analog signals are processed the linear optical coupling power supply in circuit and are both needed to be produced by insulating power supply module B0505S conversion, + 5V power supply can be output as another road insulating power supply by this module, and chip isolation voltage can reach 1000VDC, temperature characterisitic is better.
Described alarm module is audible-visual annunciator, can carry out onsite alarming by alarm module, notify operator on duty when humiture data, smoke data exception.
The present invention gathers the principle of data:
Data acquisition unit has the voltage of standard, electric current and On-off signal signal sampling interface. Analog signals sampling interface circuit, uses HCNR201 linear optical coupling to carry out signal isolation. Voltage signal interface can input DC0-5V signal, and signal is filtered, isolates and sends into after amplitude limit the AD sampling channel of STM32F101 by the voltage signal of input through voltage signal conditioning circuit; Current signal interface can input 4-20mA signal, and the current signal of input, by accurate sampling resistor, converts current signal to voltage signal, then again the voltage signal of conversion is sent into voltage signal conditioning circuit and processes, is finally re-fed into AD sampling channel; Switch value input interface adopts optocoupler to isolate, it is achieved opto-electronic conversion and insulation blocking. After the data of sampling are carried out software processes by STM32F101, data being uploaded to again through RS485 communication interface host computer or other equipment of control centre, data acquisition processes and the function communicated, it is simple to control centre understands storehouse real time status in time. Onsite alarming can be carried out by alarm module when microprocessor judges humiture data, smoke data exception, notify operator on duty.
Below being only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment, and all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention. It should be pointed out that, for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, should be regarded as protection scope of the present invention.
Claims (6)
1. for the data acquisition unit of furniture storehouse, it is characterized in that, including microprocessor, power module, communication module, light-coupled isolation module, Signal-regulated kinase, switching input module, Analog input mModule, alarm module, described switching input module connects microprocessor by light-coupled isolation module, described Analog input mModule is connected to microprocessor by Signal-regulated kinase, described microprocessor is also respectively connected with power module, communication module, alarm module, described microprocessor also includes AD conversion module, the input of this AD conversion module is connected with the outfan of Signal-regulated kinase.
2. the data acquisition unit for furniture storehouse according to claim 1, it is characterized in that, filtration module that described Signal-regulated kinase includes being sequentially connected with, linear optical coupling isolation module, clipping module, the outfan of clipping module connects the input of AD conversion module.
3. the data acquisition unit for furniture storehouse according to claim 2, it is characterised in that described linear optical coupling isolation module adopts the linear optical coupling of HCNR201 model.
4. according to the arbitrary described data acquisition unit for furniture storehouse of claims 1 to 3, it is characterized in that, described switching input module includes photo-coupler U1, electric capacity C1, resistance R1, resistance R2, after electric capacity C1 and resistance R1 series connection, resistance R1 connects 12V power supply, electric capacity C1 connecting valve amount signal input port, 2 inputs of photo-coupler U1 are connected in parallel on electric capacity C1 two ends, one output head grounding, another outfan is simultaneously connected with input and the resistance R2 of microprocessor, and the resistance R2 other end connects 3.3V power supply.
5. the data acquisition unit for furniture storehouse according to claim 4, it is characterised in that described photo-coupler U1 adopts TLP521 photoelectrical coupler.
6. according to the arbitrary described data acquisition unit for furniture storehouse of claims 1 to 3, it is characterised in that described microprocessor adopts the STM32F101 enhancement mode flash memory microcontroller of ST Microelectronics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410575721.5A CN105628082A (en) | 2014-10-25 | 2014-10-25 | Data acquisition device for furniture warehouses |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410575721.5A CN105628082A (en) | 2014-10-25 | 2014-10-25 | Data acquisition device for furniture warehouses |
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| CN105628082A true CN105628082A (en) | 2016-06-01 |
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| CN201410575721.5A Pending CN105628082A (en) | 2014-10-25 | 2014-10-25 | Data acquisition device for furniture warehouses |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108375932A (en) * | 2018-02-10 | 2018-08-07 | 殷玉彩 | A kind of multiplexed signal sampling and processing system with low-power consumption ability |
| CN109507612A (en) * | 2018-12-28 | 2019-03-22 | 中电智能科技有限公司 | Analog acquisition card and fault detection method |
-
2014
- 2014-10-25 CN CN201410575721.5A patent/CN105628082A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108375932A (en) * | 2018-02-10 | 2018-08-07 | 殷玉彩 | A kind of multiplexed signal sampling and processing system with low-power consumption ability |
| CN109507612A (en) * | 2018-12-28 | 2019-03-22 | 中电智能科技有限公司 | Analog acquisition card and fault detection method |
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Application publication date: 20160601 |
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| WD01 | Invention patent application deemed withdrawn after publication |