Integrated circuit system of intelligent controllable integrated equipment

Abstract

The invention discloses an integrated circuit system of intelligent controllable integrated equipment, comprising a computer main body which is internally provided with a 1553B bus interface and a power supply module and is used for carrying out data communication and power supply distribution with 1553B bus equipment; the power supply module is provided with a 12V IN terminal for inputting a 12V power supply, and the 12V power supply is converted into a 5V power supply through a voltage stabilizing chip 78L05; the infrared receiving and decoding module comprises an infrared receiving head A and is used for receiving and demodulating infrared remote control codes sent by an infrared remote controller and outputting coded information to the chips U1 and U2; the computer remote controller has the advantages that by arranging the infrared decoding and control module with the learning function, the computer remote controller can adapt to infrared remote controllers of different styles, a user does not need to specially configure a remote controller for a computer, the computer can be controlled to be turned on and turned off through remote controllers of other devices such as a projector in the same room, the number of the remote controllers in the room is reduced, and the cost is reduced. And the use convenience is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of computer power-on and power-off control, and particularly relates to an integrated circuit system of an intelligent controllable integrated device. Background Art

[0002] Infrared rays are invisible light, which has the characteristics of straight-line propagation and will not interfere with other electrical devices, and is widely used in the remote control of various household appliances and electronic devices; an infrared remote control is a device that uses infrared rays to transmit control signals.

[0003] The inside of an infrared remote control mainly consists of a microprocessor chip, a crystal oscillator, an amplifying transistor, an infrared light-emitting diode, and a keyboard matrix circuit, etc.; when a user presses a button on the remote control, the microprocessor will identify the instruction code corresponding to the button, and then modulate the coded signal onto an infrared carrier wave of a specific frequency through a control circuit, and then emit it through the infrared light-emitting diode; after the device at the receiving end receives the infrared signal through an infrared receiving head, it converts it into an electrical signal, and after processing such as demodulation and decoding, finally identifies the corresponding control instruction and executes the operation.

[0004] After long-term development, infrared remote control technology has been quite mature, and the costs of related chips, components, etc. are low, and it is easy to mass-produce, which makes the prices of infrared remote controls generally quite affordable. For both manufacturers and consumers, they have relatively high cost performance; it has been widely supported in many household appliance and electronic device fields, and devices of different brands and models can basically be equipped with corresponding infrared remote controls. Consumers do not need to learn complex operations additionally and it is very convenient to use; the propagation characteristics of infrared rays determine that it will not be easily interfered with or intercepted by other devices like radio waves, so to a certain extent, it ensures the security and stability of the control signal transmission, and can effectively avoid misoperations and malicious interferences; infrared remote controls usually use batteries for power supply. Due to their relatively low transmission power and being in a standby state when not in operation, the overall power consumption is small, and an ordinary battery can often be used for a long time, which also increases the convenience of users; the design is simple and intuitive, the button layout and function markings are clear, and even first-time users can quickly get started and easily achieve various control operations on the device.

[0005] An intelligent timing multi-functional computer power-on and power-off device with the patent publication number CN103049068A. This patent discloses an apparatus including an ATMEGA8 single-chip microcomputer, a DS1302 clock module, an infrared receiving module, a USB-to-serial port interface, a power supply module, and a host computer control software. The ATMEGA8 single-chip microcomputer serves as the control core. The DS1302 clock module, the infrared receiving module, the USB-to-serial port interface, the USB power supply module, and the host computer control software are all connected to the ATMEGA8 single-chip microcomputer, i.e., the microprocessor. The host computer control software: realizes software shutdown by calling the system program; can also read the computer clock in real time after the computer is powered on to calibrate the internal clock of the DS1302; sets the power-on and power-off times through the computer host computer control software. Currently, there is still a need for a more convenient, universal, and flexible solution for controlling the computer power-on and power-off using an infrared remote control to meet the diverse needs of users. Summary of the Invention

[0006] The object of the present invention is to provide an integrated circuit system for an intelligent controllable integrated device, which realizes the convenient control of the computer power-on and power-off using an infrared remote control, has an infrared remote control coding learning function, can adapt to different styles of infrared remote controls, and reduces the number of remote controls.

[0007] To achieve the above object, the present invention provides the following technical solutions: An integrated circuit system for an intelligent controllable integrated device, including Computer main body: It is internally provided with a 1553B bus interface and a power supply module for data communication with 1553B bus devices and power distribution. Power supply module: It is provided with a 12V IN terminal for inputting 12V power, which is converted to 5V by a voltage regulator chip 78L05. Infrared receiving and decoding module: It includes an infrared receiving head A for receiving the infrared remote control coding emitted by the infrared remote control and demodulating it, and outputting the coding information to chips U1 and U2. Chip U2 can save the coding value of the remote control button by pressing the button switch and learning the corresponding infrared remote control button coding method. Control execution module: The output terminals of chips U1 and U2 drive a relay through a triode. The external control terminals of the relay are respectively connected to the power-on control terminal and the power-off control terminal on the computer main board. When the chip receives the corresponding remote control button signal, it controls the relay to pull in, changing the state of the external control terminal, and realizing the control of the computer power-on or power-off.

[0008] As a preferred technical solution of the present invention, chip U1 processes a single coding format, and chip U2 processes multiple coding formats.

[0009] As a preferred technical solution of the present invention, the learning method of the chip U2 is as follows: press the button switch 1 once, the indicator light E1 lights up, then press the button 1 on the infrared remote control to be learned, and this light goes out, indicating that the button 1 has been learned; press the button 2 in the same way, the indicator light E2 lights up, and learn the button 2 on the infrared remote control.

[0010] As a preferred technical solution of the present invention, the module communicates with the outside world using infrared rays, and the protocol adopts the NEC format.

[0011] As a preferred technical solution of the present invention, the voltage regulator chip 78L05 includes three pins, namely an input pin, a ground pin and an output pin.

[0012] As a preferred technical solution of the present invention, the voltage regulator chip 78L05 internally includes a voltage regulation circuit, a reference voltage source, and an error amplifier; when a 12V voltage is input to the input pin of 78L05, the internal voltage regulation circuit adjusts the output voltage according to the stable voltage value provided by the reference voltage source through the error amplifier to make it stable at 5V; if the output voltage fluctuates due to load changes, the error amplifier detects this change and adjusts the voltage regulation circuit to ensure that the output voltage is always stable at 5V.

[0013] As a preferred technical solution of the present invention, the infrared receiver head A includes three pins, namely a power supply pin, a ground pin and a signal output pin.

[0014] As a preferred technical solution of the present invention, the signal output pin of the infrared receiver head A is connected to the data input pins of the chips U1 and U2.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: By setting an infrared decoding and control module with a learning function, it can adapt to different styles of infrared remote controls. Users do not need to specifically equip a remote control for the computer, and can use the remote control of other devices in the same room, such as a projector, to control the computer to turn on and off, reducing the number of remote controls in the room and improving the use convenience; Adopting a mature infrared remote control technology, the cost is low, and the infrared transmission has high security and stability, avoiding signal interference and misoperation; The structure is simple and easy to implement, with little modification to the computer hardware and software systems, and has good versatility and compatibility. Description of the Drawings

[0016] Figure 1 It is the system schematic diagram of the present invention. Detailed Embodiments

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] Embodiment 1 Please refer to Figure 1 , which is the first embodiment of the present invention. This embodiment provides an integrated circuit system for an intelligent controllable integrated device, including Computer main body: It is built-in with a 1553B bus interface and a power module, which are used for data communication and power distribution with 1553B bus devices; Power module: It is provided with a 12V IN terminal for inputting 12V power, which is converted to 5V through a voltage regulator chip 78L05 to provide power for the chip and the relay; Infrared receiving and decoding module: It includes an infrared receiving head A, which is used to receive the infrared remote control code sent by the infrared remote control and demodulate it, and output the encoded information to chips U1 and U2; Chip U1 is used to process a single encoding format, and chip U2 is a learning-type decoding chip, which is used to process multiple encoding formats, and chip U2 has a learning function. The encoded value of the remote control button can be saved by pressing the button switch and learning the corresponding infrared remote control button code. Control execution module: The output terminals of chips U1 and U2 drive the relay through a triode. The external control terminals of the relay are respectively connected to the power-on control terminal and the power-off control terminal on the computer main board. When the chip receives the corresponding remote control button signal, it controls the relay to suck in, so that the state of the external control terminal changes, realizing the control of turning on or off the computer.

[0019] In this embodiment, preferably, the learning method of chip U2 is to press the button switch 1 once, the indicator light E1 lights up, and then press the button 1 on the infrared remote control to be learned. When this light goes out, it means that the button 1 has been learned; Press the button 2 in the same way, the indicator light E2 lights up, and learn the button 2 on the infrared remote control.

[0020] In this embodiment, preferably, the communication between the module and the outside uses infrared rays, and the protocol adopts the NEC format.

[0021] In this embodiment, preferably, the voltage regulator chip 78L05 includes three pins, namely the input pin, the ground pin, and the output pin; connect the 12V input power supply to the input pin of the voltage regulator chip 78L05, and at the same time connect the ground pin to the ground terminal of the power supply; a filter capacitor needs to be connected between the output pin and the ground, and a 100 μF electrolytic capacitor and a 0.1 μF ceramic capacitor are connected in parallel to further smooth the output 5V voltage.

[0022] In this embodiment, preferably, the voltage regulator chip 78L05 internally includes a voltage adjustment circuit, a reference voltage source, and an error amplifier; when a 12V voltage is input to the input pin of 78L05, the internal voltage adjustment circuit adjusts the output voltage according to the stable voltage value provided by the reference voltage source through the error amplifier, so that it is stabilized at 5V; if the output voltage fluctuates due to load changes, the error amplifier detects this change and adjusts the voltage adjustment circuit to ensure that the output voltage is always stabilized at 5V.

[0023] In this embodiment, preferably, the infrared receiver head A includes three pins, namely the power supply pin, the ground pin, and the signal output pin; connect the power supply pin to the 5V power supply and the ground pin to the ground to ensure the normal operation of the infrared receiver head.

[0024] In this embodiment, preferably, the signal output pin of the infrared receiver head A is connected to the data input pins of chips U1 and U2. To enhance the anti-interference ability of the signal, a pull-up resistor can be added to the signal output line and connected to the 5V power supply.

[0025] Embodiment 2 Please refer to Figure 1 , which is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The difference is that: The infrared receiver head A internally integrates an infrared photosensitive diode and a preamplifier; when the infrared signal emitted by the infrared remote control irradiates the photosensitive diode of the infrared receiver head A, the photosensitive diode converts the optical signal into a weak electrical signal; this electrical signal is amplified by the preamplifier and becomes a signal that can be processed by the subsequent circuit; the signal emitted by the infrared remote control is usually modulated, and the common modulation methods are pulse position modulation or pulse width modulation; the demodulation circuit inside the infrared receiver head A demodulates the amplified signal, removes the modulation carrier, and restores the original remote control coding signal; the demodulation circuit demodulates using the same modulation frequency as the remote control, such as the common 38kHz carrier frequency; The encoded information after demodulation is output from the signal output pin of the infrared receiver head A in the form of a digital signal; by reading this digital signal, chips U1 and U2 can obtain the encoded information sent by the infrared remote control; the programs inside chips U1 and U2 further decode and process this encoded information to identify which button the user has pressed and perform corresponding operations.

[0026] The MIL-STD-1553B bus protocol is the alias of the "Aircraft Internal Time Division Command / Response Multiplexed Data Bus", which is a centralized control, command response, time division serial bus standard. The 1553 bus has the advantages of good real-time performance, complete data transmission, high bus efficiency, and being suitable for distributed systems with centralized control. The 1553 bus has become a key technology for the interconnection of modern aviation airborne system equipment and is widely used on weapon platforms such as aircraft, ships, and tanks. Good real-time performance. The data transmission rate of the 1553B bus is 1 Mbps. Each message contains at most 32 words, and the time required to transmit a fixed message is short; the data transmission rate is higher than that of general communication networks. Reasonable error control measures and unique mode commands. To ensure the integrity of data transmission, the 1553B adopts reasonable error control measures - the feedback retransmission error correction method; when the BC sends a command or a message to a certain RT, the terminal should send back a status word within the given response time. If the transmitted message is in error, the terminal will refuse to send back the status word, thereby reporting that the previous message transmission is invalid; the unique mode command not only enables the system to complete the data communication control task, but also can check the fault situation and complete the fault tolerance management function. High bus efficiency. The bus form of the topology structure has relatively high requirements for bus efficiency. Therefore, the 1553B has strict restrictions on some mandatory requirements related to bus efficiency indicators such as command response time, message interval time, and the length of the maximum and minimum data blocks for each message transmission. It has command / response and "broadcast" communication methods. The BC can send a time synchronization message to all RTs in a "broadcast" manner. In this way, all message transmissions on the bus are controlled by the instructions sent by the bus controller, and the relevant terminals should respond to the instructions and perform operations; this method is very suitable for distributed processing systems with centralized control.

[0027] Composition of the MIL-STD-1553 Bus The 1553 bus consists of 3 types of terminal devices: bus controller (BC), remote terminal (RT), and bus monitor (MT). Each terminal is connected by 1 multi-bus interface (MBI). The communication medium required for the data path includes all hardware such as twisted pair shielded cables, isolation resistors, and coupling transformers.

[0028] The Bus Controller (BC) is the terminal that organizes information transmission in the bus system; the Remote Terminal (RT) is the interface from the user subsystem to the data bus, and extracts or absorbs data under the control of the BC. The Bus Monitor (MT) is the terminal in the bus system that is designated to receive and record the information transmitted on the bus and selectively extract the information for later use. The Remote Terminal (RT) is all terminals in the bus system except the Bus Controller or the Bus Monitor. Under the control of the BC, it sends and receives data with the BC device or other RT devices. The MIL-STD-1553B standard stipulates two coupling methods. One is the direct coupling method, and the other is the transformer coupling method, also known as the indirect coupling method. In the case of the direct coupling method, it is required that the data line distance between the bus interface and the terminal interface does not exceed 1 foot (0.3048 m). In this case, an isolation transformer can be directly used. When the data line distance between the bus interface and the terminal is greater than 1 foot (0.3048 m), the transformer coupling method must be used (but in principle, this coupling method cannot exceed 20 feet, that is, 6.096 meters). In this case, in addition to using an isolation transformer, a coupling transformer must be used. MIL-STD-1553 Information Word Format The operating frequency of the 1553B bus is 1 Mb / s. The control right of information transmission in the bus system solely belongs to the Bus Controller; it adopts an asynchronous operation of the instruction / response type; information transmission adopts a half-duplex mode; the information flow on the data bus consists of messages; the basic information transmitted on the bus is words; there are 3 types of words: command words, status words, and data words; the length of each word is 20 bits, including 3-bit sync headers, 16-bit valid information, and a parity check bit, and is composed of Manchester II code.

[0029] The instruction word should be composed of a sync header, a remote terminal address field, a transmit / receive bit (T / R), a sub-address / mode field, a data word count / mode code field, and a parity check bit (P); the instruction word is sent from the BC end, and the corresponding RT port receives the instruction word and performs the operations required by the instruction word to achieve data interaction. The data word sync header should be an invalid Manchester waveform. When its width is three bits, the waveform in the first 1.5 bits is negative, and the waveform in the last 1.5 bits is positive; if the bits before and after the sync header are logic 1, then the apparent width of the sync header will increase to four bits. The 5 bits following the sync header shall be the remote terminal address field; each remote terminal is assigned a unique address, which can be any address from decimal address 0 to decimal address 30, but decimal address 0 should be avoided as the unique address of the remote terminal as much as possible; decimal address 31 (11111) is also designated as the common address for all remote terminals and is used when the system performs broadcast operations; The bit following the remote terminal address shall be the transmit / receive bit; it shall indicate the operation required of the remote terminal. Logic 0 designates the remote terminal to perform a receive operation, and logic 1 designates the remote terminal to perform a transmit operation; The five bits following the transmit / receive bit are used to distinguish the sub-address of the remote terminal or as a flag (00000 and 11111) for mode control in the bus system; when this field is 00000 or 11111, it indicates that this instruction word is a mode control instruction. If this field is not 00000 or 11111, it indicates the sub-address of the RT terminal; therefore, BC can determine the mode of the instruction word by configuring this segment and can access the data of the corresponding RT0x01 - 0x1E sub-addresses; The five bits following the sub-address / mode field are used to specify the number of data words that the remote terminal should transmit or receive, or are used to configure an optional mode code; up to 32 data words can be transmitted or received in any message block. All 1s represent decimal count 31, and all 0s represent decimal count 32; therefore, if bits 9 - 14 of the instruction word are the RT sub-address, then this segment represents the number of messages to be transmitted or received, otherwise it represents the mode code.

[0030] The last bit of the word shall be used as the parity check for the first 16 bits; 1553B uses odd parity to ensure data accuracy.

[0031] The data word consists of a 3-bit sync field, a 16-bit data field, and a 1-bit parity check bit; the data word is sent from either BC or RT to achieve data interaction between the two terminals; The data word sync header shall be an invalid Manchester waveform. When its width is three bits, the waveform is negative in the first 1.5 bits and positive in the last 1.5 bits; if the bits before and after this sync header are logic 1, then the apparent width of the sync header will increase to four bits; The 16 bits following the sync header are data storage bits, and users can fill these 16 bits to achieve data transmission; The last bit of the word shall be used as the parity check for the first 16 bits; 1553B uses odd parity to ensure data accuracy.

[0032] Although embodiments of the present invention have been shown and described, refer to the above detailed description. For those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated circuit system of an intelligent and controllable integrated device, characterized in that: include Computer body: Built-in 1553B bus interface and power module, used for data communication and power distribution with 1553B bus devices; Power module: It has a 12V IN terminal for inputting 12V power, which is converted into 5V through the voltage regulator chip 78L05; Infrared receiving and decoding module: including infrared receiving head A, used to receive infrared remote control code sent by infrared remote control and demodulate it, and output the code information to chips U1 and U2; chip U2 can save the code value of remote control button by pressing the button switch and learning the corresponding infrared remote control button code; Control execution module: The output ends of chips U1 and U2 drive relays through transistors. The external control terminals of the relays are respectively connected to the power-on control terminal and the power-off control terminal on the computer motherboard. When the chip receives the corresponding remote control button signal, the control relay is energized to change the state of the external control terminal, thereby realizing the control of powering on or off the computer.

2. The integrated circuit system of an intelligent controllable integrated device according to claim 1, characterized in that: The chip U1 processes a single encoding format, and the chip U2 processes multiple encoding formats.

3. The integrated circuit system of an intelligent controllable integrated device according to claim 1, characterized in that: The learning method of the chip U2 is to press the button switch 1 once, the indicator light E1 is on, and then press the button 1 on the infrared remote controller to be learned, and this light goes out, indicating that the learning of button 1 has been completed; press button 2 in the same way, the indicator light E2 is on, and the button 2 on the infrared remote controller is learned.

4. The integrated circuit system of an intelligent controllable integrated device according to claim 1, characterized in that: The module communicates with the outside world using infrared rays, and the protocol uses the NEC format.

5. The integrated circuit system of an intelligent controllable integrated device according to claim 1, characterized in that: The voltage regulator chip 78L05 includes three pins, namely an input pin, a ground pin and an output pin.

6. The integrated circuit system of an intelligent controllable integrated device according to claim 5, characterized in that: The voltage regulator chip 78L05 contains a voltage adjustment circuit, a reference voltage source, and an error amplifier. When the 12V voltage is input to the input pin of the 78L05, the internal voltage adjustment circuit adjusts the output voltage through the error amplifier according to the stable voltage value provided by the reference voltage source to stabilize it at 5V. If the output voltage fluctuates due to load changes, the error amplifier detects this change and adjusts the voltage regulation circuit to ensure that the output voltage is always stable at 5V.

7. The integrated circuit system of an intelligent controllable integrated device according to claim 1, characterized in that: The infrared receiving head A includes three pins, namely a power pin, a ground pin and a signal output pin.

8. The integrated circuit system of an intelligent controllable integrated device according to claim 7, characterized in that: The signal output pins of the infrared receiving head A are connected to the data input pins of the chips U1 and U2.

Images