CN208141167U - One kind is multifunction nursing bed to use bluetooth controller - Google Patents

Abstract

A bluetooth controller for a multifunctional nursing bed is composed of a power conversion module, a bluetooth receiving module, a single-chip microcomputer, a control circuit module, and a relay group hardware module. The upper computer sends the nursing action AT signal control command through the bluetooth transmission module. After the bluetooth module in the controller receives the instruction from the upper computer, it sends it to the single chip microcomputer through the connection pin of the single chip microcomputer and performs analysis and processing. According to the control after analysis and processing The instruction is controlled by the control circuit to control the corresponding relay action of the hardware module of the relay group, and the nursing control instruction is transmitted to the controller of the nursing bed itself through the connection line between the interface of the relay group hardware module and the control interface of the nursing bed itself, so as to realize the remote real-time nursing control of the nursing bed . The biggest feature of this case is that it directly uses the original manipulator interface of the multifunctional nursing bed, and can realize seamless connection with the wearable health monitoring system based on Bluetooth. Bluetooth wireless communication is easy to operate and easy to use.

Description

A Bluetooth controller for a multifunctional nursing bed

technical field

The utility model belongs to the field of medical and nursing electronic appliances, in particular to a bluetooth controller for a multifunctional nursing bed.

Background technique

With the improvement of people's living standards and the development of an aging society, especially the one-child generation has entered the social work position, the care of the elderly and bedridden patients has become a serious social problem. Therefore, it is particularly important to reduce the burden on medical staff through a nursing bed based on automatic control.

Utility model content

The utility model proposes a bluetooth controller for a multifunctional nursing bed, which comprehensively considers human-machine interaction, ease of use, and health monitoring of bedridden patients. The Bluetooth communication of the upper computer can realize the functions of turning left and right, raising the back, lowering the back, bending legs, flat legs, opening the bedpan, closing the bedpan, and automatic timing nursing functions of the multifunctional nursing bed to meet the care of bedridden patients. need.

The technical scheme of the utility model is achieved in this way.

A kind of bluetooth controller for multifunctional nursing bed, it comprises power conversion module, bluetooth receiving module, single-chip microcomputer, control circuit module and relay group hardware module, upper computer is connected with described bluetooth receiving module through bluetooth sending module, and described bluetooth receiving module The module is directly connected to the serial port pins of the single-chip microcomputer through the serial port pins, and the single-chip microcomputer is directly connected to the control circuit module and the relay group hardware module through the IO pins, and the relay group hardware module is directly connected to the nursing bed itself through a connecting line. The controllers are connected; the nursing action control instructions of the upper computer are transmitted to the Bluetooth receiving module through the Bluetooth sending module, and the Bluetooth receiving module is directly transmitted to the single-chip microcomputer through the serial port pins, and the single-chip microcomputer processes and analyzes the control instructions. The hardware module of the relay group is controlled by the IO pins and the control circuit module, and is sent to the controller of the nursing bed itself through the interface connected with the controller of the nursing bed itself, so as to realize the action control of the nursing bed.

In the Bluetooth controller for the multifunctional nursing bed of the present invention, a triode is arranged between the control circuit module and the relay group hardware module.

In the Bluetooth controller for the multifunctional nursing bed of the present invention, the Bluetooth receiving module is a BLU4.0 Bluetooth module using CC2540 as the core chip.

In the Bluetooth controller for the multifunctional nursing bed of the present invention, the single-chip microcomputer adopts a C52 single-chip microcomputer.

In the Bluetooth controller for the multifunctional nursing bed of the present invention, the power conversion module adopts the LM2596 switching voltage regulator.

Implementing the Bluetooth controller for this multifunctional nursing bed of the present invention has the following beneficial effects: this case got rid of the traditional wired communication control mode, and adopted a Bluetooth technology that is very mature and suitable for short-distance communication, reducing Going away from the previous wire communication, while taking into account the integration with the current popular wearable device Bluetooth communication, the controller host computer receiver and the Bluetooth health parameter monitoring wearable device host computer receiver can be integrated together, with a compact structure and easy operation Convenient and strong applicability.

Description of drawings

Figure 1 is a schematic diagram of the working process of the Bluetooth controller.

FIG. 2 is a schematic diagram of the composition of the Bluetooth controller and the control implementation process.

Figure 3 is a block diagram of the program flow.

Figure 4 is a circuit diagram of the Bluetooth receiving module.

Fig. 5 is a functional block diagram of the control circuit module and the hardware module of the relay group.

Figure 6 is a circuit diagram of the power conversion module.

Figure 7 is a circuit diagram of the power conversion module.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

The working process of the bluetooth controller for the multifunctional nursing bed described in the utility model is shown in Fig. 1 . First, insert the connecting wires into the controller interface of the nursing bed itself and the Bluetooth controller interface, press the switch, and the power conversion module 1 (shown in Figure 2) powers up the Bluetooth controller, so that the microcontroller 3 is in the state of waiting for the serial port to be interrupted And the enabling end and the receiving end of the Bluetooth receiving module 2 are at a low level, so that the Bluetooth receiving module 2 is in the broadcasting and receiving state, and is paired with the host computer until the pairing is successful and the Bluetooth module is still in the broadcasting state. When the upper computer has a nursing action AT control command sent by the bluetooth sending module, the bluetooth receiving module 2 will receive the instruction information from the upper computer, and send it to the single chip microcomputer 3 for analysis and processing through the serial port pin, and control the nursing action according to the analysis and processing The command is controlled by the control circuit to control the action of the corresponding relay of the hardware module 5 of the relay group, and is transmitted to the corresponding pin of the controller of the nursing bed itself through the connecting wire, so as to realize the remote real-time nursing of the nursing action of the nursing bed.

The multifunctional nursing bed bluetooth controller system described in the utility model is shown in Fig. 2 . The system includes a power conversion module 1, a Bluetooth receiving module 2, a single-chip microcomputer 3, a control circuit module 4, and a relay group hardware module 5 (the part in the dotted line box in Figure 2). The Bluetooth receiving module 2 in this case uses CC2540 as the core chip BLU4. 0 bluetooth module, single-chip microcomputer 3 adopts C52 single-chip microcomputer. After the bluetooth module is paired successfully, the bluetooth receiving module 2 receives the nursing bed action AT signal control command sent by the host computer through the bluetooth sending module, and sends it to the single chip microcomputer 3 through the serial port pin for analysis and processing. The circuit module 4 controls the action of the corresponding relay of the hardware module 5 of the relay group, and transmits it to the corresponding pin of the controller of the nursing bed itself through the connecting wire, so as to realize the remote real-time nursing of the nursing action of the nursing bed.

The program flow diagram in the utility model is shown in Figure 3. After the Bluetooth controller system is powered on, the Bluetooth receiving module 2 enters the broadcast pairing state, and is always in the waiting state after the pairing is successful. When the Bluetooth receiving module 2 receives the information from the upper computer, it will automatically send it to the single-chip microcomputer 3 through the TX port of the serial port, so that the single-chip microcomputer 3 generates an interrupt signal, enters the selection statement for identification, analysis and processing, and further controls the action of the relay through the IO port according to the command. Output the signal to the controller of the nursing bed itself, so as to execute the corresponding nursing action; when the Bluetooth receiving module 2 does not receive the information from the upper computer, it will always be in a waiting state.

The bluetooth receiving module 2 circuit in the utility model is shown in Figure 4, adopts CC2540 to be the BLU4.0 bluetooth module of core chip in this case, bluetooth receiving module 2RX, TX, BCTS are connected with C52 single-chip microcomputer TX, RX and an IO pin , BRTS and BCTS are the data transmission request and data transmission request signal ports respectively, and EN is the level trigger mode selection port. In this case, the EN terminal is directly grounded, so that the Bluetooth receiving module 2 is always in the broadcasting working state, and the BRTS terminal is also directly grounded, so that The bluetooth receiving module 2 is always in the receiving state, realizing the two-way communication between the bluetooth controller and the upper computer and the communication with the single chip microcomputer 3 . Since the enabling end of the Bluetooth receiving module 2 is directly grounded in this case, the Bluetooth receiving module 2 quickly enters the state of broadcast pairing for pairing until the pairing with the host computer is successful, and the pairing indicator light on the Bluetooth is on after the pairing is successful. After the bluetooth receiving module 2 receives the signal from the upper computer, it sends the data to the receiving end of the single chip microcomputer 3 through the serial port TX. When the receiving end of the Bluetooth module receives data from the MCU 3, the Bluetooth module automatically sets the data input terminal BCTS to a low level to wake up the host computer, and transmits the data to the host computer after a delay. After the data transmission is completed Automatically pull the BCTS terminal potential high. The function of the diodes at the RX and TX ends is to utilize the unidirectional conductivity of the diodes to prevent the program from being imported into the Bluetooth module when the program is imported into the microcontroller 3 .

The principle of control circuit module 4 and relay group hardware module 5 in the utility model is as shown in Figure 5, the action control signal after the single-chip microcomputer 3 recognizes processing, is controlled triode control circuit module 4 by single-chip microcomputer 3 I/O port, connects SPDT The relay group hardware module 5 is the relay of the corresponding nursing action, and the control signal is sent to the controller of the nursing bed itself to execute the corresponding nursing action.

The power conversion module 1 of the utility model is shown in Figure 6. In the embodiment, lm2596 is used to introduce the power in the controller of the nursing bed itself into the Bluetooth controller and drop it to 5V to provide power for the Bluetooth controller system.

The principle of control circuit module 4 and relay group hardware module 5 in the utility model is shown in Fig. 7, and is made up of resistance, light-emitting diode, relay, triode, diode. In this case, there are 10 identical control circuits and relay circuits to form the control circuit module 4 and the relay group hardware module 5, and the corresponding 10 nursing actions of the nursing bed are: turning left, turning right, raising the back, lowering the back, Curved legs, flat legs, bedpan open, bedpan close, automatic timer A, automatic timer B. Figure 7 is a schematic diagram of a control circuit and a relay circuit. The P2.6 pin of the single-chip microcomputer 3 controls the closing of the corresponding relay. The output pin P2.6 that controls this function gives a low level to the base of the triode in the relay auxiliary circuit that performs this action. After the base of the triode receives the signal from the microcontroller 3, the emitter and collector of the triode conduct When the relay is turned on, the relay is closed, the COM and SEL ports of the relay are connected, and the control signal is transmitted to the nursing bed through the output circuit and the connecting wire. The nursing bed can perform corresponding actions after receiving the signal. At the same time, the light-emitting diode is turned on and emits light to indicate that the relay is in the pull-in state. When the relay is from working state to stop working, because the pull-in of the relay is controlled by the induction coil inside the relay, and the induction coil will generate a huge current at the moment of power failure, which is enough to break down the triode, so this case considers For this point, a diode circuit is designed. The function of the diode circuit is to consume the huge current generated by the relay at the moment of power failure, and prevent the breakdown of the triode in the circuit.

The bluetooth controller system circuit board in this case can be soldered on the control board with relevant components. So far, the purpose of the invention of the utility model is accomplished.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (5)

1. Multifunction nursing bed use bluetooth controller 1. a kind of, which is characterized in that including power conversion module, bluetooth receiving module, Single-chip microcontroller, control circuit module and relay group hardware module, host computer receive mould by bluetooth sending module and the bluetooth Block is connected, and the bluetooth receiving module is directly connected with the microcontroller serial port pin by serial port pin, and the single-chip microcontroller is logical It crosses I/O pin to be directly connected with the control circuit module and relay group hardware module, the relay group hardware module passes through Directly this body controller is connected connecting line with nursing bed；The care actions control instruction of host computer is passed by bluetooth sending module It send to the bluetooth receiving module, the bluetooth receiving module is conveyed directly to the single-chip microcontroller, the list by serial port pin Piece machine controls the relay group hardware mould by I/O pin and the control circuit module for after control instruction processing analysis Block, and the interface through connecting with nursing bed own controller, are delivered to nursing bed own controller, realize the movement control of nursing bed System.
2. 2. multifunction nursing bed bluetooth controller according to claim 1, which is characterized in that the control circuit module A triode is equipped between relay group hardware module.
3. 3. multifunction nursing bed bluetooth controller according to claim 1, which is characterized in that the bluetooth receiving module It is the BLU4.0 bluetooth module for using CC2540 as core chips.
4. 4. multifunction nursing bed bluetooth controller according to claim 1, which is characterized in that the single-chip microcontroller uses C52 single-chip microcontroller.
5. 5. multifunction nursing bed bluetooth controller according to claim 1, which is characterized in that the power conversion module Using LM2596 regulator.