CN206270713U - A kind of multiple interface environment monitoring device based on FPGA - Google Patents

Abstract

The utility model is related to a kind of environment monitoring device, more particularly to a kind of multiple interface environment monitoring device based on FPGA.The utility model includes control module, serial driver, sensor assembly, ROM memory, interface circuit and power module, the serial driver, the ROM memory two-way communication link between control module, two-way communication link between the serial driver and interface circuit, the output end of the interface circuit connects the input of power module, the output end of the power module, the output end of sensor assembly are all connected with the input of control module, and the output end of the control module is connected with the input of indicating circuit.The utility model provides multiple interfaces, can adapt to various application occasions, and powerful, reliability it is high, using simple, with low cost.

Description

A kind of multiple interface environment monitoring device based on FPGA

Technical field

The utility model is related to a kind of environment monitoring device, more particularly to a kind of multiple interface environment monitoring dress based on FPGA Put.

Background technology

Environmental data is one of very important underlying parameter in production and living, and many equipment or organism are needed certain Humiture environment under just can guarantee that optimal runnability, occur if it exceeds normal temperature and humidity, when equipment is run therefore The probability of barrier will be greatly increased.Under conditions of moist, high temperature, the performance of equipment and operating are inevitably subject to shadow Sound, particularly imflammable gas or smog also can result in production and living and is subjected to catastrophic injury, therefore, environment monitoring device For production and living provide safely and effectively protection alarm, can be notified at administrative staff in time when ambient parameter occurs abnormal Reason, environment monitoring device will play an increasingly important role.

Environment monitoring device of the prior art majority interfaces are single can not to well adapt to various application occasions, and have Product reliability is not high, it is difficult to continuous operation for a long time.

Utility model content

The utility model is in order to overcome the above-mentioned deficiencies of the prior art, there is provided a kind of multiple interface environment prison based on FPGA Survey device, the utility model provide multiple interfaces, and reliability it is high, using simple, with low cost.

To achieve the above object, the utility model employs following technical measures：

A kind of multiple interface environment monitoring device based on FPGA include control module, serial driver, sensor assembly, ROM memory, interface circuit and power module, the serial driver, ROM memory, interface circuit are and control module Between two-way communication link, two-way communication link between the serial driver and interface circuit, the output of the interface circuit The input of end connection power module, the output end of the power module, the output end of sensor assembly are all connected with control module Input, the output end of the control module is connected with the input of indicating circuit.

The utility model can also further be realized by following technical measures.

Preferably, the sensor assembly includes digital temperature-humidity sensor, Smoke Sensor, gas sensor, institute State the input of the output end link control module of digital temperature-humidity sensor, the output end of the Smoke Sensor, gas The output end of sensor is by the input of comparator link control module.

Preferably, the interface circuit includes the first communication interface, the second communication interface, third communication interface, four-way Letter interface, first communication interface, the second communication interface, the third communication interface two-way communication between serial driver connects Connect, the output end of the first communication interface, the output end of the second communication interface are connected with the input of power module, the described 4th The communication interface two-way communication link between control module, I2C interface temperature sensors respectively.

Preferably, the indicating circuit is indicator lamp and/or loudspeaker.

Further, first communication interface is rectangular connector；Second communication interface, third communication interface, the 4th Communication interface is strip columnwise connector.

Further, the serial ports of the serial driver including RS485 level formats, the serial ports of RS42 level formats and The serial ports of RS232 level formats.

Further, the control module includes fpga chip, and the model U.S. Altera of the fpga chip is public Take charge of the EP4CE6F17I7N chips of production.

Further, this environment monitoring device also includes Direct current power source socket, the output end of the Direct current power source socket Connect the input of the power module.

Further, the control module, serial driver, sensor assembly, ROM memory, interface circuit, power supply Module, comparator are integrated on same circuit board, and the circuit board is arranged at the tray interior with ventilative grid.

The beneficial effects of the utility model are：

1), the utility model include control module, serial driver, sensor assembly, ROM memory, interface circuit with And power module, the interface circuit includes that the first communication interface, the second communication interface, third communication interface, fourth communication connect Mouthful, the serial driver includes serial ports, the serial ports of RS42 level formats and the RS232 level formats of RS485 level formats Serial ports, the utility model can work under various power supplies, can be with plug-in I2C interface temperatures sensor, it is also possible to Duo Zhongchuan Sensor constitutes sensor network by 485 buses, therefore the utility model provides multiple interfaces, can adapt to various applied fields Close, and powerful, reliability it is high, using simple, with low cost.

Be worth it is emphasized that：The utility model only protect by above-mentioned physical unit and connect each physical unit it Between the circuit device or physical platform that are constituted, without regard to software section therein.

2), the control module includes fpga chip, altera corp of the model U.S. production of the fpga chip EP4CE6F17I7N chips, the chip price is cheap, process signal speed is fast；The control module, serial driver, sensor Module, ROM memory, interface circuit, power module, comparator are integrated on same circuit board, and the circuit board is arranged at Tray interior with ventilative grid, therefore small volume of the present utility model, it is easily installed maintenance.

Brief description of the drawings

Fig. 1 is that circuit of the present utility model constitutes structured flowchart.

Reference implication in figure is as follows：

10-control module, 20-serial driver, 30-sensor assembly

40-ROM memory, 50-interface circuit, 60-power module

Specific embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment for being obtained, belongs to the scope of the utility model protection.

As shown in figure 1, a kind of multiple interface environment monitoring device based on FPGA includes control module 10, serial driver 20th, sensor assembly 30, ROM memory 40, interface circuit 50 and power module 60, the storage of the serial driver 20, ROM Device 40, interface circuit 50 two-way communication link between control module 10, the serial driver 20 and interface circuit 50 it Between two-way communication link, the output end of the interface circuit 50 connects the input of power module 60, the power module 60 Output end, the output end of sensor assembly 30 are all connected with the input of control module 10, the output end of the control module 10 with The input of indicating circuit is connected.

The ROM memory 40 is used for depositing the working method of user's setting, and internal storage running parameter, power down preserves number According to upper electricity reads data.

The sensor assembly 30 includes digital temperature-humidity sensor, Smoke Sensor, gas sensor, the numeral The input of the output end link control module 10 of formula Temperature Humidity Sensor, the output end of the Smoke Sensor, gas sensing The output end of device is by the input of comparator link control module 10；The gas sensor be used to perceive in air can Combustion property gas, the Smoke Sensor is used to perceive the change of the smokescope near monitoring device and convert it into digital quantity Send to control module 10.

The interface circuit 50 includes that the first communication interface, the second communication interface, third communication interface, fourth communication connect Mouthful, second communication interface, third communication interface can as the entrance and exit of bus, first communication interface, Second communication interface, the third communication interface two-way communication link, the output of the first communication interface between serial driver 20 End, input of the output end of the second communication interface with power module 60 be connected, the fourth communication interface respectively with control Two-way communication link between module 10, I2C interface temperature sensors, greatly extends investigative range of the present utility model.

The indicating circuit is indicator lamp and/or loudspeaker.

First communication interface is rectangular connector, and pin is made up of+5V power supplys and serial ports；Second communication interface, Three communication interfaces are strip columnwise connector, and pin is made up of+5V~+12V power inputs, cascading power source, serial ports；Fourth communication Interface is exported by+5V power supplys, I2C interfaces are constituted；This environment monitoring device also includes Direct current power source socket, and the dc source is inserted The output end of seat connects the input of the power module 60.Direct current power source socket can be powered by adapter, for providing+12V Power supply, can voluntarily select interface as needed when actually used.

The serial driver 20 includes the string of RS485 level formats, RS42 level formats and RS232 level formats Mouthful, the utility model can work under various power supplies, can be with plug-in I2C interface temperatures sensor, it is also possible to multiple sensors Sensor network is constituted by 485 buses.

The control module 10 includes fpga chip, altera corp of the model U.S. production of the fpga chip EP4CE6F17I7N chips, the chip price is cheap, and process signal speed is fast.

The control module 10, serial driver 20, sensor assembly 30, ROM memory 40, interface circuit 50, power supply Module 60, comparator is integrated on same circuit board, and the circuit board is arranged at the tray interior with ventilative grid.

The utility model when in use, can coordinate to be used with software of the prior art.With reference to existing Software in technology is described to operation principle of the present utility model, it must be noted that be：Match with the utility model The software of conjunction is not innovative part of the present utility model, nor part of the present utility model.

As shown in figure 1, the utility model is after the power-up, power module 60 provide+5V required on circuit board ,+3.3V ,+ 2.5V and+1.2V voltages, normal rear indicator light of powering are lighted, and sensor assembly 30 gathers warm and humid near this environment monitoring device Degree information, smog information, gas information, and above-mentioned environmental information is changed into digital quantity send to control module 10, this practicality Two kinds of mode of operations of new offer, when being worked as single-sensor, control module 10 is directly by environmental data network consisting bag Serial data timing is changed into by serial driver 20 to be sent out；When constituting sensor network by 485 buses, by main section Point send Query Information, from node receive Query Information after by address information therein take out and with itself ROM memory 40 in Address compare, if identical, the environmental data of this node is returned back into host node by 485 buses.Sending or receiving number According to when, the work of corresponding indicating circuit.

Claims (9)

1. a kind of multiple interface environment monitoring device based on FPGA, it is characterised in that：Including control module (10), serial driver (20), sensor assembly (30), ROM memory (40), interface circuit (50) and power module (60), the serial driver (20), ROM memory (40), interface circuit (50) two-way communication link, the serial port drive between control module (10) Two-way communication link between device (20) and interface circuit (50), the output end of the interface circuit (50) connects power module (60) Input, the output end of the power module (60), the output end of sensor assembly (30) are all connected with control module (10) Input, the output end of the control module (10) is connected with the input of indicating circuit.

2. a kind of multiple interface environment monitoring device based on FPGA as claimed in claim 1, it is characterised in that：The sensor Module (30) includes digital temperature-humidity sensor, Smoke Sensor, gas sensor, the digital temperature-humidity sensor The input of output end link control module (10), the output end of the Smoke Sensor, the output end of gas sensor are led to Cross the input of comparator link control module (10).

3. a kind of multiple interface environment monitoring device based on FPGA as claimed in claim 2, it is characterised in that：The interface electricity Road (50) includes the first communication interface, the second communication interface, third communication interface, fourth communication interface, and first communication connects Mouth, the second communication interface, the third communication interface two-way communication link between serial driver (20), the first communication interface The input of output end, the output end of the second communication interface with power module (60) is connected, the fourth communication interface difference The two-way communication link between control module (10), I2C interface temperature sensors.

4. a kind of multiple interface environment monitoring device based on FPGA as claimed in claim 1, it is characterised in that：It is described to indicate electricity Road is indicator lamp and/or loudspeaker.

5. a kind of multiple interface environment monitoring device based on FPGA as claimed in claim 3, it is characterised in that：Described first leads to Letter interface is rectangular connector；Second communication interface, third communication interface, fourth communication interface are strip columnwise connector.

6. a kind of multiple interface environment monitoring device based on FPGA as claimed in claim 5, it is characterised in that：The serial ports drives The serial ports of the dynamic serial ports of device (20) including RS485 level formats, the serial ports of RS42 level formats and RS232 level formats.

7. a kind of multiple interface environment monitoring device based on FPGA as claimed in claim 2, it is characterised in that：The control mould Block (10) includes fpga chip, the EP4CE6F17I7N chips of Al tera companies of the model U.S. production of the fpga chip.

8. a kind of multiple interface environment monitoring device based on FPGA as claimed in claim 6, it is characterised in that：This environmental monitoring Device also includes Direct current power source socket, and the output end of the Direct current power source socket connects the input of the power module (60).

9. a kind of multiple interface environment monitoring device based on FPGA as claimed in claim 3, it is characterised in that：The control mould Block (10), serial driver (20), sensor assembly (30), ROM memory (40), interface circuit (50), power module (60), Comparator is integrated on same circuit board, and the circuit board is arranged at the tray interior with ventilative grid.