CN209895163U

CN209895163U - Analog quantity acquisition circuit integrating multiple communication functions

Info

Publication number: CN209895163U
Application number: CN201920997723.1U
Authority: CN
Inventors: 韩洪军
Original assignee: Suzhou Puzhong Intelligent Technology Co Ltd
Current assignee: Suzhou Puzhong Intelligent Technology Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-01-03
Anticipated expiration: 2029-06-28

Abstract

The utility model discloses an integrated multiple communication function's analog quantity acquisition circuit, it include power module (1), with main control chip module (2) that power module (1) links to each other and with analog quantity acquisition module (3) that main control chip module (2) link to each other, integrated multiple communication function's analog quantity acquisition circuit still include with RS485 communication module (4), RS232 communication module (5) and Zigbee communication module (6) that main control chip module (2) link to each other. The utility model discloses an integrated multiple communication function's analog quantity acquisition circuit, integrated multiple communication function in an organic whole, increase analog signal acquisition circuit's commonality, reduce cost.

Description

Analog quantity acquisition circuit integrating multiple communication functions

Technical Field

The utility model relates to a signal acquisition field, in particular to analog quantity acquisition circuit of integrated multiple communication function.

Background

With the development of the chip industry, communication functions have become a basic requirement, and are widely integrated into chips in various fields.

In the existing analog signal acquisition chip, a communication circuit is usually installed to satisfy a communication function, and once another communication function is needed, the signal acquisition chip satisfying the other communication function needs to be replaced, so that the universality of the signal acquisition chip is greatly reduced, and the cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the above-mentioned defect among the prior art, provide an integrated multiple communication function's analog quantity acquisition circuit, integrated multiple communication function in an organic whole, increase analog signal acquisition circuit's commonality, reduce cost.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: the utility model provides an integrated multiple communication function's analog quantity acquisition circuit, its include power module, with the main control chip module that power module links to each other and with the analog quantity acquisition module that the main control chip module links to each other, integrated multiple communication function's analog quantity acquisition circuit still include with RS485 communication module, RS232 communication module and the Zigbee communication module that the main control chip module links to each other.

Furthermore, the utility model discloses still include following subsidiary technical scheme:

the main control chip module adopts an STC15W4K60S4 chip, the RS485 communication module adopts an MAX485 chip, a pin 1 of the MAX485 chip is connected with a pin P00 of the STC15W4K60S4 chip, a pin 2 and a pin 3 of the MAX485 chip are connected with a pin P46 of the STC15W4K60S4 chip, and a pin 4 of the MAX485 chip is connected with a pin P01 of the STC15W4K60S4 chip.

The RS485 communication module is connected with an RS485 bus, and a pin A and a pin B of the MAX485 chip are respectively connected to an end A and an end B of the RS485 bus.

The main control chip module adopts an STC15W4K60S4 chip, the RS232 communication module adopts an MAX232 chip, a pin 11 of the MAX232 chip is connected with a pin P31 of the STC15W4K60S4 chip, and a pin 12 of the MAX232 chip is connected with a pin P30 of the STC15W4K60S4 chip.

The MAX232 chip is connected with a D-type data interface, a pin 13 of the MAX232 chip is connected with a pin 3 of the D-type data interface, and a pin 14 of the MAX232 chip is connected with a pin 2 of the D-type data interface.

The main control chip module adopts an STC15W4K60S4 chip, the Zigbee communication module adopts an SZ05-ADV-RS232 chip, a pin 22 of the SZ05-ADV-RS232 chip is connected with a pin P01 of the STC15W4K60S4 chip, and a pin 23 of the SZ05-ADV-RS232 chip is connected with a pin P00 of the STC15W4K60S4 chip.

The analog quantity acquisition module adopts TLC2543 chip, the analog quantity acquisition module include with the current signal acquisition circuit that TLC2543 chip pin 1 links to each other, current signal acquisition circuit is including waiting to gather the current signal, wait to gather current signal input 1 with TLC2543 chip pin 1 links to each other, and wait to gather current signal pin 1 with be connected with resistance R16 between TLC2543 chip pin 1, wait to gather current signal pin 2 respectively with resistance R16 links to each other with ground, and wait to gather current signal pin 2 with be connected with resistance R18 between the resistance R16.

Analog quantity acquisition module adopts TLC2543 chip, analog quantity acquisition module include with the voltage signal acquisition circuit that TLC2543 chip pin 3 links to each other, voltage signal acquisition circuit is including waiting to gather voltage signal, wait to gather voltage signal input 1 with TLC2543 chip pin 3 links to each other, and wait to gather voltage signal pin 1 with be connected with resistance R23 between TLC2543 chip pin 3, resistance R23 links to each other with ground simultaneously, be connected with resistance R21 between resistance R23 and the ground, parallelly connected electric capacity C21 on the resistance R21, it links to each other with ground to wait to gather current signal pin 2.

The analog quantity acquisition circuit integrating multiple communication functions further comprises a clock module connected with the main control chip module, the clock module adopts a DS1302 chip, the main control chip module adopts an STC15W4K60S4 chip, and a pin 7, a pin 6 and a pin 5 of the DS1302 chip are respectively connected with a pin P35, a pin P36 and a pin P37 of the STC15W4K60S4 chip.

The analog quantity acquisition circuit integrating multiple communication functions further comprises a nixie tube driving module connected with the main control chip module, the nixie tube driving module adopts a nixie tube chip, the main control chip module adopts an STC15W4K60S4 chip, and

pins

3, 3 and 4 of the nixie tube chip are connected with pins P20, P21 and P22 of the STC15W4K60S4 chip.

Compared with the prior art, the utility model discloses the advantage lies in: the current signal acquisition function and the voltage signal acquisition function are integrated in the aspect of analog signal acquisition, and the RS485 communication function, the RS232 communication function and the Zigbee communication function are integrated in the aspect of communication, so that the signal acquisition circuit can acquire the switching signals and the analog signals under different communication environments, the universality of the signal acquisition circuit is greatly improved, and the cost is reduced.

Drawings

Fig. 1 is a schematic structural diagram of an analog quantity acquisition circuit integrating multiple communication functions.

Fig. 2 is a schematic diagram of a circuit structure of the middle main control chip module of the present invention.

Fig. 3 is a schematic circuit structure diagram of the RS485 communication module of the present invention.

Fig. 4 is a schematic circuit structure diagram of the RS232 communication module of the present invention.

Fig. 5 is a schematic circuit structure diagram of the Zigbee communication module of the present invention.

Fig. 6 is a schematic diagram of a circuit structure of the analog quantity acquisition module of the present invention.

Fig. 7 is a schematic circuit diagram of the clock module according to the present invention.

Fig. 8 is a schematic circuit diagram of the nixie tube driving module according to the present invention.

Fig. 9 is a schematic circuit diagram of the power module of the present invention.

Detailed Description

The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings.

As shown in fig. 1, the analog quantity acquisition circuit integrated with multiple communication functions according to a preferred embodiment of the present invention includes a power module 1, a main control chip module 2 connected to the power module 1, and an analog quantity acquisition module 3, an RS485 communication module 4, an RS232 communication module 5, a Zigbee communication module 6, a clock module 7, and a nixie tube driving module 8 connected to the main control chip module 2.

As shown in fig. 2 to 9, the main control chip module 2 employs an STC15W4K60S4 chip 21, the RS485 communication module 4 employs a MAX485 chip 41, a pin 1 of the MAX485 chip 41 is connected to a pin P00 of the STC15W4K60S4 chip 21, a pin 2 and a pin 3 of the MAX485 chip 41 are connected to a pin P46 of the STC15W4K60S4 chip 21, and a pin 4 of the MAX485 chip 41 is connected to a pin P01 of the STC15W4K60S4 chip 21. The RS485 communication module 4 is connected with an RS485 bus 42, and a pin a and a pin B of the MAX485 chip 41 are respectively connected to an a end and a B end of the RS485 bus 42. A first protection circuit is arranged between a pin a of the MAX485 chip 41 and an a end of the RS485 bus 42, the first protection circuit includes a resistor R4, and a pull-up resistor R3 and a zener diode D2 connected to two ends of the resistor R4, respectively, a second protection circuit is arranged between a pin B of the MAX485 chip 41 and a B end of the RS485 bus 42, the second protection circuit includes a resistor R2, and a pull-down resistor R1 and a zener diode D1 connected to two ends of the resistor R2, respectively, the pull-up resistor R3 and the pull-down resistor R1 are used for error correction, so as to ensure that two lines keep stable high and low levels when the bus is idle, and the zener diode D2 and the zener diode D1 are used for protecting the MAX485 chip 41, because a wiring of a long distance may be interfered by a strong point to induce a high voltage to break through the MAX485 chip. Pin 5 of the MAX485 chip 41 is grounded, and pin 8 of the MAX485 chip 41 is connected with a power supply VCC.

The RS232 communication module 5 adopts a MAX232 chip 51, wherein a pin 11 of the MAX232 chip 51 is connected with a pin P31 of the STC15W4K60S4 chip 21, and a pin 12 of the MAX232 chip 51 is connected with a pin P30 of the STC15W4K60S4 chip 21. The MAX232 chip 51 is connected to the D-type data interface 52, the pin 13 of the MAX232 chip 51 is connected to the pin 3 of the D-type data interface 52, and the pin 14 of the MAX232 chip 51 is connected to the pin 2 of the D-type data interface 52. Pin 5 of the D-type data interface 52 is connected to ground. A capacitor C15 is connected between a pin 1 and a pin 3 of the MAX232 chip 51, a capacitor C16 is connected between a pin 4 and a pin 5, a capacitor C17 is connected between a pin 2 and the ground, and a capacitor C18 is connected between a pin 6 and the ground, so that two power supplies are generated and used for supplying power to the RS232 serial port. The pin 16 of the MAX232 chip 51 is connected to the power source VCC and the ground, a capacitor C14 is connected between the pin 16 and the ground, and the pin 15 of the MAX232 chip 51 is connected to the ground.

The Zigbee communication module 6 adopts an SZ05-ADV-RS232 chip 61, a pin 22 of the SZ05-ADV-RS232 chip 61 is connected with a pin P01 of an STC15W4K60S4 chip 21, and a pin 23 of the SZ05-ADV-RS232 chip 61 is connected with a pin P00 of the STC15W4K60S4 chip 21. The pin 21 of the SZ05-ADV-RS232 chip 61 is connected with a power supply VCC, the pin 20 and the pin 24 of the SZ05-ADV-RS232 chip 61 are grounded, and a capacitor C2 is connected between the pin 21 and the pin 20 of the SZ05-ADV-RS232 chip 61.

The analog quantity acquisition module 3 adopts a TLC2543 chip 31, and the pin 18, the pin 17, the pin 16, the pin 15 and the pin 19 of the TLC2543 chip 31 are respectively connected with the pin P15, the pin P13, the pin P14, the pin P12 and the pin P47 of the STC15W4K60S4 chip 21. Pins 1 to 9, 11 and 12 of the TLC2543 chip 31 are analog inputs connected to the analog signal to be collected. Pin 20 of TLC2543 chip 31 is connected to power and pin 10 is connected to ground.

The analog quantity acquisition module 3 comprises a current signal acquisition circuit 32 connected with a pin 1 of a TLC2543 chip 31, the current signal acquisition circuit 32 comprises a current signal 321 to be acquired, an input end 1 of the current signal 321 to be acquired is connected with the pin 1 of the TLC2543 chip 31, a resistor R16 is connected between the pin 1 of the current signal 321 to be acquired and the pin 1 of the TLC2543 chip 31, a pin 2 of the current signal 321 to be acquired is respectively connected with a resistor R16 and the ground, and a resistor R18 is connected between the pin 2 of the current signal 321 to be acquired and the resistor R16.

The analog quantity acquisition module 3 further comprises a voltage signal acquisition circuit 33 connected with pins 3 of a TLC2543 chip 31, the voltage signal acquisition circuit 33 comprises a voltage signal 331 to be acquired, an input end 1 of the voltage signal 331 to be acquired is connected with pins 3 of the TLC2543 chip 31, a resistor R23 is connected between the pin 1 of the voltage signal 331 to be acquired and the pins 3 of the TLC2543 chip 31, the resistor R23 is simultaneously connected with the ground, a resistor R21 is connected between the resistor R23 and the ground, a capacitor C21 is connected in parallel to the resistor R21, and pins 2 of a current signal 321 to be acquired are connected with the ground.

The clock module 7 adopts a DS1302 chip 71, and the pin 7, the pin 6 and the pin 5 of the DS1302 chip 71 are respectively connected with the pin P35, the pin P36 and the pin P37 of the STC15W4K60S4 chip 21. The pin 2 and the pin 3 of the DS1302 chip 71 are connected with a crystal oscillator circuit 72; pin 1 and pin 8 of the DS1302 chip 71 are connected to a power supply, and pin 8 is connected to a backup power supply 73.

The nixie tube driving module 8 adopts a nixie tube chip 81, the main control chip module 2 adopts an STC15W4K60S4 chip 21, and a pin 3, a pin 3 and a pin 4 of the nixie tube chip 81 are connected with a pin P20, a pin P21 and a pin P22 of the STC15W4K60S4 chip 21.

The power module 1 adopts an LM2596 chip 11 to perform circuit voltage stabilization.

The utility model discloses an integrated multiple communication function's analog quantity acquisition circuit has integrateed current signal acquisition function and voltage signal acquisition ability in the aspect of analog signal acquisition, has integrateed RS485 communication function, RS232 communication function and Zigbee communication function in the aspect of the communication, makes signal acquisition circuit can carry out switching signal and analog signal's collection simultaneously under different communication environment, has improved signal acquisition circuit's commonality greatly, the cost is reduced.

It should be noted that the above-mentioned preferred embodiments are only for illustrating the technical concepts and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, and the protection scope of the present invention cannot be limited thereby. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides an integrated multiple communication function's analog quantity acquisition circuit, its include power module (1), with main control chip module (2) that power module (1) links to each other and with analog quantity acquisition module (3) that main control chip module (2) link to each other, its characterized in that: the analog quantity acquisition circuit integrating multiple communication functions further comprises an RS485 communication module (4), an RS232 communication module (5) and a Zigbee communication module (6) which are connected with the main control chip module (2).

2. The analog acquisition circuit integrating multiple communication functions of claim 1, wherein: the main control chip module (2) adopts an STC15W4K60S4 chip (21), the RS485 communication module (4) adopts an MAX485 chip (41), a pin 1 of the MAX485 chip (41) is connected with a pin P00 of the STC15W4K60S4 chip (21), a pin 2 and a pin 3 of the MAX485 chip (41) are connected with a pin P46 of the STC15W4K60S4 chip (21), and a pin 4 of the MAX485 chip (41) is connected with a pin P01 of the STC15W4K60S4 chip (21).

3. The analog acquisition circuit integrating multiple communication functions of claim 2, wherein: the RS485 communication module (4) is connected with an RS485 bus (42), and a pin A and a pin B of the MAX485 chip (41) are respectively connected to an end A and an end B of the RS485 bus (42).

4. The analog acquisition circuit integrating multiple communication functions of claim 1, wherein: the main control chip module (2) adopts an STC15W4K60S4 chip (21), the RS232 communication module (5) adopts a MAX232 chip (51), a pin 11 of the MAX232 chip (51) is connected with a pin P31 of the STC15W4K60S4 chip (21), and a pin 12 of the MAX232 chip (51) is connected with a pin P30 of the STC15W4K60S4 chip (21).

5. The analog acquisition circuit integrating multiple communication functions of claim 4, wherein: the MAX232 chip (51) is connected with a D-type data interface (52), a pin 13 of the MAX232 chip (51) is connected with a pin 3 of the D-type data interface (52), and a pin 14 of the MAX232 chip (51) is connected with a pin 2 of the D-type data interface (52).

6. The analog acquisition circuit integrating multiple communication functions of claim 1, wherein: the main control chip module (2) adopts an STC15W4K60S4 chip (21), the Zigbee communication module (6) adopts an SZ05-ADV-RS232 chip (61), a pin 22 of the SZ05-ADV-RS232 chip (61) is connected with a pin P01 of the STC15W4K60S4 chip (21), and a pin 23 of the SZ05-ADV-RS232 chip (61) is connected with a pin P00 of the STC15W4K60S4 chip (21).

7. The analog acquisition circuit integrating multiple communication functions of claim 1, wherein: the analog quantity acquisition module (3) adopts a TLC2543 chip (31), the analog quantity acquisition module (3) comprises a current signal acquisition circuit (32) connected with a pin 1 of the TLC2543 chip (31), the current signal acquisition circuit (32) comprises a current signal (321) to be acquired, an input end 1 of the current signal (321) to be acquired is connected with the pin 1 of the TLC2543 chip (31), a resistor R16 is connected between the pin 1 of the current signal (321) to be acquired and the pin 1 of the TLC2543 chip (31), a pin 2 of the current signal (321) to be acquired is respectively connected with the resistor R16 and the ground, and a resistor R18 is connected between the pin 2 of the current signal (321) to be acquired and the resistor R16.

8. The analog acquisition circuit integrating multiple communication functions of claim 1, wherein: the analog quantity acquisition module (3) adopts a TLC2543 chip (31), the analog quantity acquisition module (3) comprises a voltage signal acquisition circuit (33) connected with pins 3 of the TLC2543 chip (31), the voltage signal acquisition circuit (33) comprises a voltage signal (331) to be acquired, an input end 1 of the voltage signal (331) to be acquired is connected with the pins 3 of the TLC2543 chip (31), a resistor R23 is connected between the pin 1 of the voltage signal (331) to be acquired and the pins 3 of the TLC2543 chip (31), the resistor R23 is simultaneously connected with the ground, a resistor R21 is connected between the resistor R23 and the ground, a capacitor C21 is connected on the resistor R21 in parallel, and a pin 2 of the current signal (321) to be acquired is connected with the ground.

9. The analog acquisition circuit integrating multiple communication functions of claim 1, wherein: the analog quantity acquisition circuit integrating multiple communication functions further comprises a clock module (7) connected with the main control chip module (2), the clock module (7) adopts a DS1302 chip (71), the main control chip module (2) adopts an STC15W4K60S4 chip (21), and a pin 7, a pin 6 and a pin 5 of the DS1302 chip (71) are respectively connected with a pin P35, a pin P36 and a pin P37 of the STC15W4K60S4 chip (21).

10. The analog acquisition circuit integrating multiple communication functions of claim 1, wherein: the analog quantity acquisition circuit integrating multiple communication functions further comprises a nixie tube driving module (8) connected with the main control chip module (2), wherein the nixie tube driving module (8) adopts a nixie tube chip (81), the main control chip module (2) adopts an STC15W4K60S4 chip (21), and pins 3, 3 and 4 of the nixie tube chip (81) are connected with pins P20, P21 and P22 of the STC15W4K60S4 chip (21).