CN205540081U

CN205540081U - Sensor input module that cordwood system port can map

Info

Publication number: CN205540081U
Application number: CN201521142798.XU
Authority: CN
Inventors: 邱丹
Original assignee: CHONGQING JUJI TECHNOLOGY Co Ltd
Current assignee: CHONGQING JUJI TECHNOLOGY Co Ltd
Priority date: 2015-12-31
Filing date: 2015-12-31
Publication date: 2016-08-31
Anticipated expiration: 2025-12-31

Abstract

The utility model relates to a sensor input module that cordwood system port can map, a serial communication port, include: the core interface board, the display lamp, communication interface, power quality monitoring module, power source, sensor mapping unit, the sensor interface that are connected with the core interface board. The utility model provides a sensor input module that cordwood system port can map need not to carry on the numerical value conversion, uses simplyr, type, range and quantity to the sensor can all dispose.

Description

The sensor input module that building block system port can map

Technical field

This utility model sensor input technology field, more particularly, it relates to the sensor input module that a kind of building block system port can map.

Background technology

Sensor acquisition module in the market, each circuit-switched data feeding back to host computer is the data that sensor acquisition value is changed in the range of resolution；User needs carry out the conversion of numeral system and convert according to the range of sensor during using, and adds difficulty to engineer in certain degree；Additionally number of sensors and type are all fixing, during using, need multiple module to be combined using, and cause the waste of some ports.

Therefore, prior art urgently has greatly improved.

Utility model content

The technical problems to be solved in the utility model is, above-mentioned defect for prior art, the sensor input module that a kind of building block system port can map is provided, including: core interface plate, the display lamp being connected with core interface plate, communication interface, power quality monitoring modular, power interface, sensor maps unit, sensor interface.In the sensor input module that building block system port described in the utility model can map, described core interface plate farther includes: microcontroller ARM7LPC2134.

In the sensor input module that building block system port described in the utility model can map, described sensor interface at least two, combines with modular system.

In the sensor input module that building block system port described in the utility model can map, the input of described power interface power supply is direct current 12V～24V.

In the sensor input module that building block system port described in the utility model can map, the sensor input module that described building block system port can map is connected by RS485 bus with master control remote system.

LPC2134 is built-in serial communication interface and the on-chip SRAM of 8kB, 32 bit timing devices, 1 or 2 ADC on 10 8 tunnels, 10 DAC, PWM passages, 47 GPIO and up to 9 edges or the external interrupt of level triggers, pass through interface circuit, core board gathers various signals, carries out signal judging to export in corresponding object；

ADC chip AD7677 has serial and concurrent interface, carries out 8 or the output of 16 parallel-by-bits, or 2 line Serial output, and level logic can be 3V or 5V；Realize the function of data selector；The data that sensing data source is transmitted are assigned on the mapping channel preset, and carry out data conversion according to the sensor electrical characteristic arranged, the range of sensor；The mapping channel data of acquiescence are 0, corresponding data could be converted after the actual sensor interface only mapped.

Implement the sensor input module that building block system port of the present utility model can map, have the advantages that the data fed back to after the conversion that upper data are real sensor, it is not necessary to carry out numerical value conversion, use simpler；Type, range and the quantity of sensor be can be carried out configuration.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing: Fig. 1 is the system architecture diagram of the first embodiment of the sensor input module that this utility model building block system port can map；

Fig. 2 is the circuit theory diagrams of core interface board in Fig. 1；

Fig. 3 is the circuit theory diagrams of power interface in Fig. 1；

Fig. 4 is the circuit theory diagrams of power quality monitoring modular in Fig. 1；

Fig. 5 is the circuit theory diagrams of sensor maps unit in Fig. 1；

Fig. 6 is the circuit theory diagrams of sensor interface in Fig. 1.

Detailed description of the invention

Refer to Fig. 1, the system architecture diagram of the first embodiment of the sensor input module that can map for this utility model building block system port.As shown in Figure 1, in the sensor input module that the building block system port of this utility model first embodiment offer can map, at least include, core interface plate, the display lamp being connected with core interface plate, communication interface, power quality monitoring modular, power interface, sensor maps unit, sensor interface.

Described core interface plate farther includes: microcontroller ARM7LPC2134.

Described sensor interface at least two, combines with modular system.

The input of described power interface power supply is direct current 12V～24V.

The sensor input module that described building block system port can map is connected by RS485 bus with master control remote system.

Incorporated by reference to refering to Fig. 2, for the circuit theory diagrams of core interface board in Fig. 1.As shown in Figure 2, in the first embodiment that this utility model provides, the serial communication interface of wide scope that LPC2134 is built-in and the on-chip SRAM of 8kB, multiple 32 bit timing devices, 1 or 2 ADC on 10 8 tunnels, 10 DAC, PWM passages, 47 GPIO and up to 9 edges or the external interrupt of level triggers, pass through interface circuit, core board gathers various signals, carries out signal judging to export in corresponding object.Reach the purpose controlled.

Incorporated by reference to refering to Fig. 3, for the circuit theory diagrams of power interface in Fig. 1.As it is shown on figure 3, in the first embodiment that this utility model provides, modular power source uses chip, and peripheral components is few, input Width funtion.The power supply of module stability is provided.

Incorporated by reference to refering to Fig. 4, for the circuit theory diagrams of power quality monitoring modular in Fig. 1.As shown in Figure 4, in the first embodiment that this utility model provides, power detecting, after electric power system goes wrong, carry out system reset in time.

Incorporated by reference to refering to Fig. 5, for the circuit theory diagrams of sensor maps unit in Fig. 1.As it is shown in figure 5, in the first embodiment that this utility model provides, ADC chip AD7677 uses 16 modulus conversion chips of high speed that AD company produces, and the highest sample frequency can reach 1MSPS, have internal 16 successive appraximation (SAR) correcting circuits.Remarkable integral non-linearity (INL) is maximum ± 1LSB.Good AC characteristic, minimum dynamic value is 92dB, and representative value is 94dB.Total harmonic distortion is-110dB under 45kHz.

ADC chip AD7677 has serial and concurrent interface, can carry out 8 or the output of 16 parallel-by-bits, or 2 line Serial output, and level logic can be 3V or 5V；Realize the function of data selector.The data that sensing data source is transmitted are assigned on the mapping channel preset, and carry out data conversion according to the sensor electrical characteristic arranged, the range of sensor；The mapping channel data of acquiescence are 0, corresponding data could be converted after the actual sensor interface only mapped.

Incorporated by reference to refering to Fig. 6, for the circuit theory diagrams of sensor interface in Fig. 1.As shown in Figure 6, in the first embodiment that this utility model provides, the combination of quantity can be carried out according to actual demand.Put up the mapping that can be carried out sensor afterwards.

Give one example, the sensor input module that this utility model building block system port can map connects the work process that range is 0-100 degree temperature sensor of a 4ma～20ma electrical characteristic, assume that Current Temperatures is about 25 degree, the sensor input module that this utility model building block system port can map connects a sensor unit in the way of playing with building blocks, by arranging the RS485 interface of link block, the electric type arranging sensor is 4ma～20ma；After normal work, the data that host computer can collect are 16 hex value 1863HH.The data conversion process of internal realization is, the 16 bit data decimal scale 16383 monitored, namely 16 system 3F FFHH value；It is 16383/65535* (20-4)=3.999ma that the first step is converted to corresponding current data；Second step is converted to the electric current 4+3.999=7.999ma of actual monitoring；3rd step is converted to temperature (7.999-4)/(20-4) * (100-0)=24.999；Just can realize the data conversion of high accuracy 0.001.

This utility model design by first embodiment above, can accomplish to feed back to the data after the conversion that upper data are real sensor, it is not necessary to carry out numerical value conversion, use simpler；

Type, range and the quantity of sensor be can be carried out configuration.

This utility model is described according to specific embodiment, but it will be understood by those skilled in the art that when without departing from this utility model scope, can carry out various change and equivalent.Additionally, be the specific occasion adapting to this utility model technology, this utility model can be carried out many amendments without deviating from its protection domain.Therefore, this utility model is not limited to specific embodiment disclosed herein, and includes all embodiments dropping into claims.

Claims

1. the sensor input module that a building block system port can map, it is characterised in that including: core interface plate, the display lamp being connected with core interface plate, communication interface, power quality monitoring modular, power interface, sensor maps unit, sensor interface；

Described core interface plate farther includes: microcontroller ARM7LPC2134；

Described sensor interface at least two, combines with modular system；

The input of described power interface power supply is direct current 12V～24V；

The sensor input module that described building block system port can map is connected by RS485 bus with master control remote system；

ADC chip AD7677 has serial and concurrent interface, carries out 8 or the output of 16 parallel-by-bits, or 2 line Serial output, and level logic can be 3V or 5V；Realize the function of data selector；The data 15 that sensing data source is transmitted are assigned on the mapping channel preset, and carry out data conversion according to the sensor electrical characteristic arranged, the range of sensor；The mapping channel data of acquiescence are 0, corresponding data could be converted after the actual sensor interface only mapped.