CN213276649U

CN213276649U - Minimum working circuit module based on STC89C51 chip design

Info

Publication number: CN213276649U
Application number: CN202022391233.2U
Authority: CN
Inventors: 李康; 周薇; 谢含洁
Original assignee: Wuxi Institute of Technology
Current assignee: Wuxi Institute of Technology
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-05-25
Anticipated expiration: 2030-10-23

Abstract

The utility model discloses a minimum work circuit module based on STC89C51 chip design aims at providing a minimum work circuit module based on STC89C51 chip design, and its technical scheme main points are: including sending terminal module, receiving terminal module, control module, wireless module and voice broadcast module, the sending terminal module is LED digital display tube, and the receiving terminal module is the display device, and control module is the singlechip, and the voice broadcast module is the pronunciation chip, the sending terminal module is connected with the receiving terminal module electricity, and the receiving terminal module is connected with the control module electricity, and control module is connected with the wireless module electricity, and the wireless module is connected with the voice broadcast module electricity.

Description

Minimum working circuit module based on STC89C51 chip design

Technical Field

The utility model relates to a check out test set technical field, in particular to minimum work circuit module based on STC89C51 chip design.

Background

Ordering dishes in a restaurant or queuing to lead a number in a hospital occupies a great deal of time of people, and shouting waiters to cause poor service effect. Although various number calling systems exist in the prior art, the problems of complex installation and use, high cost and the like exist, and the requirements of people cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a minimum work circuit module based on STC89C51 chip design, it has low-power consumption, high performance, can provide the advantage that powerful hardware service supported for each service trades such as dining room, bank, hospital.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a minimum work circuit module based on STC89C51 chip design, includes sending end module, receiving end module, control module, wireless module and voice broadcast module, the sending end module is LED digital display tube, the receiving end module is display device, control module is the singlechip, the voice broadcast module is the pronunciation chip, the sending end module is connected with the receiving end module electricity, the receiving end module is connected with the control module electricity, the control module is connected with the wireless module electricity, the wireless module is connected with the voice broadcast module electricity.

By adopting the technical scheme, the STC89C51 single chip microcomputer is used as a main control chip, and the LED nixie tube is used for displaying the input information at the transmitting end; the display device at the receiving end selects the LCD1602 to achieve the purpose of displaying information in real time. In the aspect of data transmission of the wireless module, a low-cost NRF24L01 wireless module is selected, and finally voice information is broadcasted through an SC8065 voice chip; firstly, a 4-by-4 matrix keyboard is used for inputting numbers at a sending end, then the numbers are transmitted to a receiving end through an NRF wireless module, then the receiving end displays received information in a liquid crystal display screen, and meanwhile, a voice chip is responsible for broadcasting the input information.

Further setting: the model of the single chip microcomputer is STC89C51, and a minimum working circuit of the single chip microcomputer is composed of an STC89C51 main control chip, a power supply, a crystal oscillator circuit and a reset circuit.

By adopting the technical scheme, the main control chip adopts STC89C51, which is a novel singlechip nowadays, a novel MCS-51 kernel is arranged in the main control chip, and compared with other main control chips, the main control chip has lower power consumption and higher processing speed; the use efficiency of the system is very high, and the system is controlled by downloading a program code into the singlechip through a PC (personal computer) end; in addition to the advantages, the single chip microcomputer is upgraded and has more functions than other traditional 51 single chip microcomputers. The storage system is particularly characterized in that the storage system uses 4K EEPROM storage, namely the storage system can be directly stored in the singlechip without an external storage chip, the Flash memory of the storage system supports 8K online programming, and the minimum working circuit of the STC89C51 singlechip consists of an STC89C51 main control chip, a power supply, a crystal oscillator circuit and a reset circuit, which are all indispensable.

Further setting: the LED digital display tube is a common anode digital tube.

By adopting the technical scheme, the common-anode nixie tube is selected as the nixie tube. All anodes (anodes) on each position of the LED lamp are connected together, a high level is input to a position display end, a low level is input to a display interruption end, and when no potential difference exists between the two sections, the LED lamp is not lighted. By means of the driving of the circuit, each segment of the nixie tube can be turned on or off, and therefore the effect required to be achieved is displayed.

Further setting: the display device is an LCD1602 liquid crystal screen, and the display device is composed of a plurality of dot matrix character bits, and symbols or numbers are formed by on-off of the dot matrix bits.

By adopting the technical scheme, the LCD1602 liquid crystal screen which is low in power consumption, light in weight and is applied to electronic watches and calculator display screens is selected. The display module is composed of a plurality of dot matrix character bits, and symbols or numbers are formed by the on and off of the dot matrix bits.

Further setting: the wireless module is adjustable to an acceptance mode and a transmission mode.

By adopting the technical scheme, in the transmitting mode, the address and the valid data of the receiving node are written into the cache area, the address code and the data code of the user are generated, and the address code and the data code are sent to the NRF24L01 communication module. Then, the received data coding signal is sent to a microcontroller for data processing. After the receiving end receives the response signal, the response signal is returned, if the response signal is received, the sending is successful, and if the response signal is failed, the data is sent again; when the wireless module needs to be controlled for data reception, it is reconfigured to a reception mode. After waiting a delay, the data is sent. When the effective address and the check code are detected, the data packet is stored in the register, and meanwhile, the interrupt is generated, so that the singlechip can read the data. When the automatic answering function is started, a signal is returned to indicate that the acceptance is successful.

To sum up, the utility model discloses following beneficial effect has: the wireless number calling module with low power consumption and high performance is formed by the least components, the management of queuing is realized based on the wireless transmission function, and powerful hardware service support can be provided for service industries such as restaurants, banks, hospitals and the like.

Drawings

Fig. 1 is a minimum operation circuit module overall module flow connection diagram.

In the figure, 1, a sending end module; 2. a receiving end module; 3. a control module; 4. a wireless module; 5. voice broadcast module.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides a minimum work circuit module based on STC89C51 chip design, as shown in fig. 1, includes sending end module 1, receiving end module 2, control module 3, wireless module 4 and voice broadcast module 5. Sending end module 1 is LED digital display tube, and LED digital display tube is for sharing the sun charactron, and receiving end module 2 is display device, and control module 3 is the singlechip, and voice broadcast module 5 is the pronunciation chip, and sending end module 1 is connected with receiving end module 2 electricity, and receiving end module 2 is connected with control module 3 electricity, and control module 3 is connected with wireless module 4 electricity, and wireless module 4 is connected with voice broadcast module 5 electricity. The model of the single chip microcomputer is STC89C51, and a minimum working circuit of the single chip microcomputer consists of an STC89C51 main control chip, a power supply, a crystal oscillator circuit and a reset circuit. The display device is an LCD1602 liquid crystal screen, and the display device is composed of a plurality of dot matrix character bits, and symbols or numbers are formed by the on and off of the dot matrix bits.

The main working principle is as follows:

firstly, a 4-by-4 matrix keyboard is used for inputting numbers at a sending end, then the numbers are transmitted to a receiving end through an NRF wireless module 4, then the receiving end displays received information in a liquid crystal display screen, and meanwhile, a voice chip is responsible for broadcasting the input information. The nixie tube of the sending end module 1 is a common anode nixie tube. All anodes (anodes) on each position of the LED lamp are connected together, a high level is input to a position display end, a low level is input to a display interruption end, and when no potential difference exists between the two sections, the LED lamp is not lighted. By means of the driving of the circuit, each segment of the nixie tube can be turned on or off, and therefore the effect required to be achieved is displayed.

The LCD1602 LCD circuit part selected by the receiving end module 2 is an LCD1602 LCD panel which has low power consumption and light weight and is often used in electronic watch and calculator display screens. The display module is composed of a plurality of dot matrix character bits, and symbols or numbers are formed by the on and off of the dot matrix bits. The display has 2 groups of power supplies, one group of power supplies controls the work of the liquid crystal backlight, the other group of power supplies provides the energy source for the work of the liquid crystal, and the two groups of power supplies are both supplied with 5V power.

The minimum working circuit of the STC89C51 singlechip selected by the control module 3 consists of an STC89C51 main control chip, a power supply, a crystal oscillator circuit and a reset circuit, and the minimum working circuit is not available. The power supply working voltage is 4.5V-5.5V, and the USB charging wire can be used for being connected into a mobile phone charger to supply power to the module. The crystal oscillator circuit provides a clock signal to the microcontroller. XTAL1 and XTAL2 can be configured by using on-chip oscillators of a crystal, or can be directly driven by an external clock. The reset circuit consists of two parts of power-on automatic reset and switch reset, and the two parts are integrated together by adopting a composite reset method. Pressing this button provides a reset signal to the microcontroller, which causes the microcontroller to program from the beginning.

In the transmitting mode, the wireless module 4 writes the address of the receiving node and the valid data into the buffer, generates the address code and data code of the user, and transmits them to the NRF24L01 communication module. Then, the received data coding signal is sent to a microcontroller for data processing. And returning a response signal after the receiving end receives the response signal, if the response signal is received, the transmission is successful, and if the response signal is failed, the data can be retransmitted. When it is desired to control the radio module 4 for data reception, it is reconfigured to the reception mode. After waiting a delay, the data is sent. When the effective address and the check code are detected, the data packet is stored in the register, and meanwhile, the interrupt is generated, so that the singlechip can read the data. When the automatic answering function is started, a signal is returned to indicate that the acceptance is successful.

The voice broadcast module 5 operates the SC8065 voice chip in the serial control mode. The DATA line sends a pulse count to control the voice address. Therefore, the method has the characteristics that a large number of language addresses can be controlled, and the control ports are few, so that the method is very consistent with the concept of number calling design. When the operation starts, the circuit sends a high level signal, waits for a while, and the DATA sends out pulse signals, wherein the number of the pulse signals is the number of the address. After receiving the sent pulse signal, the SC8065 voice chip completes voice broadcast on the address.

The above-mentioned embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the present invention.

Claims

1. The utility model provides a minimum work circuit module based on STC89C51 chip design, includes sending end module (1), receiving end module (2), control module (3), wireless module (4) and voice broadcast module (5), its characterized in that: the LED digital display device is characterized in that the sending end module (1) is an LED digital display tube, the receiving end module (2) is a display device, the control module (3) is a single chip microcomputer, the voice broadcasting module (5) is a voice chip, the sending end module (1) is electrically connected with the receiving end module (2), the receiving end module (2) is electrically connected with the control module (3), the control module (3) is electrically connected with the wireless module (4), and the wireless module (4) is electrically connected with the voice broadcasting module (5).

2. The minimum working circuit block based on STC89C51 chip design of claim 1, wherein: the model of the single chip microcomputer is STC89C51, and a minimum working circuit of the single chip microcomputer is composed of an STC89C51 main control chip, a power supply, a crystal oscillator circuit and a reset circuit.

3. The minimum working circuit block based on STC89C51 chip design of claim 1, wherein: the LED digital display tube is a common anode digital tube.

4. The minimum working circuit block based on STC89C51 chip design of claim 1, wherein: the display device is an LCD1602 liquid crystal screen, and the display device is composed of a plurality of dot matrix character bits, and symbols or numbers are formed by on-off of the dot matrix bits.

5. The minimum working circuit block based on STC89C51 chip design of claim 1, wherein: the wireless module (4) is adjustable to a reception mode and a transmission mode.