Novel storage bed control circuit

Abstract

The utility model discloses a novel storage bed control circuit which is characterized in that a control unit, a power supply unit, a detection unit, a driving unit and an interaction unit are arranged on a circuit board, and the control unit receives a control instruction sent by the interaction unit to control the driving unit to drive a lifting device to drive a bed board to move; the detection unit is controlled to detect the motion state of the bed board so as to adjust the working state of the lifting device driven by the driving unit, the bed board is flexibly controlled to ascend and descend so that articles stored under the bed board can be conveniently taken, and the detection unit detects the motion state of the bed board to prevent the articles on the bed board from falling. The control unit is used for adjusting the height of the bed board through remote control of the interaction unit, so that the bed board is prevented from being damaged due to collision between the bed board and an obstacle, the protection safety of the storage bed is effectively improved, and the use experience is also improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of intelligent beds, and in particular relates to a novel storage bed control circuit. Background Art

[0002] At present, the existing storage beds require all the items on the bed to be taken off the bed board before the items inside can be taken out. If you want to take out the items stored in the storage bed, especially when taking out the items near the innermost end, you generally need to lift up the mattress on the storage bed, and then you can easily take out the stored items. After the items are taken out, you need to lay the mattress, sheets, quilts, etc. back, making the whole process of taking out more cumbersome. In order to improve the storage capacity of the home, many families are equipped with electric storage beds. The electric storage bed is driven by a motor and can lift the mattress and bed frame so that family members can store some items in the bed box. However, the space under the storage bed is open. If protective measures are not taken, it is easy for children or items to get stuck in the gap during the closing of the storage bed, which affects the user experience and safety of the electric storage bed. Utility Model Content

[0003] In view of the above problems, the utility model provides a new storage bed control circuit, which can realize the lifting and lowering of the storage bed board at any time according to the needs, so as to take out the items stored under the bed board without worrying about any items on the bed board falling to the ground. The operation is convenient and safe, so as to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a novel storage bed control circuit, the storage bed comprises a bed board, a lifting device arranged on the bed board, and a circuit board connected to the lifting device, the novel storage bed control circuit comprises a control unit, a power supply unit, a detection unit, a drive unit and an interaction unit arranged on the circuit board, the power supply unit, the detection unit, the drive unit and the interaction unit are all connected to the control unit, and the drive unit is connected to the lifting device;

[0006] The control unit receives the control instruction sent by the interaction unit to control the driving unit to drive the lifting device to drive the bed board to move, and controls the detection unit to detect the movement state of the bed board to adjust the working state of the driving unit to drive the lifting device.

[0007] As a further preferred embodiment of the above technical solution, the detection unit includes a first motion sensing module and a second motion sensing module, the first motion sensing module is arranged on the circuit board, and the second motion sensing module is arranged on the bed board.

[0008] As a further preferred embodiment of the above technical solution, both the first motion sensing module and the second motion sensing module are six-axis motion sensors.

[0009] As a further preferred embodiment of the above technical solution, the control unit includes a chip U6, a USART interface and an I2C interface arranged on the chip U6, the USART interface is connected to the interaction unit, and the I2C interface is connected to the detection unit.

[0010] As a further preferred embodiment of the above technical solution, the control unit also includes an indicator light and an electrostatic protection circuit connected to the chip U6.

[0011] As a further preferred embodiment of the above technical solution, the driving unit includes a relay driving circuit connected to the control unit, a buzzer connected to the relay driving circuit, and a motor driving circuit, one end of the motor driving circuit is connected to the relay driving circuit, and the other end of the motor driving circuit is connected to a brushed motor for driving the lifting device to move.

[0012] As a further preferred embodiment of the above technical solution, the novel storage bed control circuit also includes a pulse sampling circuit, and the pulse sampling circuit is connected to the control unit and the motor drive circuit.

[0013] As a further preferred embodiment of the above technical solution, the interaction unit includes at least one of a key circuit, a wireless remote control module or a network control module connected to the control unit.

[0014] As a further preferred embodiment of the above technical solution, the power supply unit includes a chip U3 and a chip U8, and the chip U3 and the chip U8 are respectively provided with a clock circuit and a filter circuit.

[0015] As a further preferred embodiment of the above technical solution, the novel storage bed control circuit also includes a program burning interface connected to the control unit.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] By setting a control unit, a power supply unit, a detection unit, a driving unit and an interaction unit on the circuit board, the control unit receives the control command sent by the interaction unit to control the driving unit to drive the lifting device to drive the bed board to move, and controls the detection unit to detect the motion state of the bed board to adjust the working state of the driving unit driving the lifting device. The bed board can be flexibly controlled to lift and lower the items stored under the bed board. The detection unit detects the motion state of the bed board to prevent items on the bed board from falling. The control unit adjusts the height of the bed board through the remote control of the interaction unit to avoid damage to the bed board caused by collision with obstacles, thereby effectively improving the protection safety of the storage bed and enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural block diagram of the novel storage bed control circuit proposed by the utility model;

[0019] Figure 2 This is a circuit diagram of the first motion sensing module proposed in the present utility model;

[0020] Figure 3 This is a circuit diagram of the second motion sensing module proposed in the present utility model;

[0021] Figure 4 A circuit diagram of the control unit proposed in the utility model;

[0022] Figure 5 A circuit diagram of a relay drive circuit proposed in the utility model;

[0023] Figure 6 The circuit diagram of the buzzer proposed by the utility model;

[0024] Figure 7 A circuit diagram of the motor drive circuit proposed in the utility model;

[0025] Figure 8 A circuit diagram of the power supply unit proposed in the utility model;

[0026] Fig. 9 A circuit diagram of the key circuit proposed by the utility model;

[0027] Fig.10 The pulse sampling circuit proposed by the utility model;

[0028] Fig.11 A circuit diagram of the interactive unit proposed in the utility model;

[0029] Fig.12 This is a circuit diagram of the program burning interface proposed by the utility model.

[0030] The main component symbols are described as follows:

[0031] 100-control unit; 110-indicator light; 120-electrostatic protection circuit; 130-power supply unit; 140-detection unit; 141-first motion sensing module; 142-second motion sensing module; 150-driving unit; 151-relay driving circuit; 152-buzzer; 153-motor driving circuit; 160-interaction unit; 170-pulse sampling circuit; 180-program burning interface; 190-key circuit. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0034] See also Figures 1 to 12 The utility model provides a novel storage bed control circuit, the storage bed comprises a bed board, a lifting device arranged on the bed board, and a circuit board connected to the lifting device. The novel storage bed control circuit comprises a control unit 100, a power supply unit 130, a detection unit 140, a drive unit 150 and an interaction unit 160 arranged on the circuit board. The power supply unit 130, the detection unit 140, the drive unit 150 and the interaction unit 160 are all connected to the control unit 100, and the drive unit 150 is connected to the lifting device.

[0035] The control unit 100 receives the control instruction sent by the interaction unit 160 to control the driving unit 150 to drive the lifting device to drive the bed board to move, and controls the detection unit 140 to detect the movement state of the bed board to adjust the working state of the driving unit 150 to drive the lifting device.

[0036] In this embodiment, refer again to Figure 2 , Figure 3 , Figure 4 , Fig. 9 and Fig.10, the detection unit 140 includes a first motion sensing module 141 and a second motion sensing module 142, the first motion sensing module 141 is arranged on the circuit board, the second motion sensing module 142 is arranged on the bed board, and the first motion sensing module 141 and the second motion sensing module 142 are both six-axis motion sensors. The control unit 100 includes a chip U6, a USART interface and an I2C interface arranged on the chip U6, the USART interface is connected to the interaction unit 160, the I2C interface is connected to the detection unit 140, and the control unit 100 also includes an indicator light 110 and an electrostatic protection circuit 120 connected to the chip U6. The driving unit 150 includes a relay driving circuit 151 connected to the control unit 100, a buzzer 152 connected to the relay driving circuit 151, and a motor driving circuit 153, one end of the motor driving circuit 153 is connected to the relay driving circuit 151, and the other end of the motor driving circuit 153 is connected to a brushed motor for driving the lifting device to move. The novel storage bed control circuit further includes a pulse sampling circuit 170, which is connected to the control unit 100 and the motor drive circuit 153. The interactive unit 160 includes at least one of a key circuit 190, a wireless remote control module or a network control module connected to the control unit 100. The power supply unit 130 includes a chip U3 and a chip U8, which are respectively provided with a clock circuit and a filter circuit. The novel storage bed control circuit further includes a program burning interface 180 connected to the control unit 100.

[0037] It should be noted that, again, Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The control unit may be an MCU, a single-chip microcomputer, etc. The chip U6 is connected to the pins 1 and 2 of the first motion sensing module 141 through the pins PB8 and PB9, the chip U6 is connected to the pins 1 and 2 of the second motion sensing module 142 through the pins BOOT0 and PB7, the chip U6 is connected to the pins 1 and 3 of the interactive unit 160 through the pins PA2 and PA3, the chip U6 is connected to the pin 7B of the chip U5 of the relay drive circuit 151 through the pin PB11, and the pin 7C of the chip U5 is connected to the buzzer 152; Fig.12 , the chip U6 is connected to the pins 3 and 2 of the program burning interface 180 through the pins PA13 and PA14, and the pin PC13 of the chip U6 is connected to the LED1 of the indicator light 110, such as Figure 1 and Fig.10, PC14_OSC32IN of chip U6 is connected to pin OUT2 of chip U7 of pulse sampling circuit 170. The indicator light is an LED light, and the electrostatic protection circuit 120 includes four parallel TVS diodes, four parallel capacitors and four parallel resistors. The electrostatic protection circuit 120 is connected to pins PA6, PA7, PA8 and PA9 of chip U6. Figure 8 The power supply unit 130 includes a chip U3, a chip U8 and peripheral circuits thereof. The peripheral circuit of the chip U3 includes a clock circuit composed of C26 and C28, a clock circuit composed of C27 and C37, and a filter circuit composed of C30 and R56, a filter circuit composed of R56 and L2, and a filter circuit composed of C36 and R58. The peripheral circuit of the chip U8 includes a clock circuit composed of C33 and C35, three parallel inductors and three parallel capacitors. The chip U3 adjusts the input 29V voltage to 12V and outputs it to the chip U8. The chip U8 outputs 3.3V of the input 12V through three inductors to power each module.

[0038] Specifically, see Figure 5 and Fig.11For the sake of convenience, the interactive unit 160 takes the hand controller as an example, and takes two lifting devices C and D as examples. Multiple DC brush motors are connected to the motor drive circuit 153, and the motor drive circuit 153 includes a current input terminal and a connection socket. The lifting device can be a lifting push rod or a lifter. The control unit 100 is an MCU, and the brush motor is a DC brush motor. The connection method between the chip U6 of the control unit 100 and the connection socket PS7 of the hand controller is: PA2 of the chip U6 is connected to pin 1 of the PS7 interface, and PA3 of the chip U6 is connected to pin 3 of the PS7 interface. The hand controller transmits the following instructions to the MCU through the serial port transmission method: control the running direction of the DC brush motor, that is, the bed board rises or the bed board falls. The lifting device motion control circuit is as follows: (1) Chip U6 is connected to the relay drive circuit 151 to control the lifting device C to rise or fall, and the PA10 of the chip U6 is connected to the pin 5 of the chip U5, and the output is through the pin 12 of the chip U5; the PB14 of the chip U6 is connected to the pin 6 of the chip U5, and the output is through the pin 11 of the chip U5; (2) Chip U5 is connected to the relay drive circuit 151 to control the lifting device D to rise or fall, and the PA11 of the chip U6 is connected to the pin 3 of the chip U5, and the output is through the pin 14 of the chip U5; the PA12 of the chip U6 is connected to the pin 4 of the chip U5, and the output is through the pin 13 of the chip U5; (3) The relay drive circuit 151 is connected to the motor drive circuit 153, and the pin 12 of the chip U5 is connected to the pin 2 of T1 of the motor drive circuit 153, and the pin 4 of T1 is connected to the pin 1 of the connection socket PS1, and the pin 11 of the chip U5 is connected to Pin 2 of T2 and pin 4 of the motor drive circuit 153 are connected to pin 5 of the connection socket PS1; (4) the connection socket PS1 is connected to the DC brush motor 1 to push the bed board up or down, pin 1 of PS1 is connected to the A end of the DC brush motor 1 and is marked as MOT1A, and pin 5 of PS1 is connected to the B end of the DC brush motor MOT1B; wherein, the chip U6 controls the DC brush motor corresponding to the lifting device C to rotate forward, reverse or stop through the two I / Os PA10 and PB14; (5) the connection socket PS4 is connected to the DC brush motor 2 to push the bed board up or down, pin 1 of PS4 is connected to the A end of the DC brush motor 2 and is marked as MOT2A, and pin 5 of PS4 is connected to the B end of the DC brush motor 2 and is marked as MOT2B, wherein the chip U6 controls the DC brush motor corresponding to the lifting device D to rotate forward, reverse or stop through the two I / Os PA11 and PA12. wherein, the A end of the DC brush motor is the winding, and the B end is the brush.

[0039] The interface connection mode of the chip U6 and the first motion sensing module 141 is recorded as PS3: PB8 of the chip U6 is connected to pin 1 of the connection socket PS3, and PB9 of the chip U6 is connected to pin 2 of PS3. The first motion sensing module 141 can be a six-axis motion sensor set on the control box, and can detect obstacles and collision objects during the rise or fall of the bed board. The interface connection mode of the chip U6 and the second motion sensing module 142 is recorded as PS8: PB6 of the chip U6 is connected to pin 1 of PS8, and PB7 of the chip U6 is connected to pin 2 of PS8. The second motion sensing module 142 can be a six-axis motion sensor externally connected to the lifting bed board, and can detect obstacles and collisions during the rise or fall of the bed board. The pulse sampling circuit 170 includes a chip U7, a plurality of resistors and capacitors. The pulse sampling circuit 170 mainly performs current sampling on the control unit 100 and the motor drive circuit 153, and can calculate the speed of the DC brush motor driven by the motor drive circuit 153 according to the distance moved by the lifting device, or control whether multiple DC brush motors need to rotate synchronously.

[0040] When using a storage bed, the bed board can be raised and lowered at any time as needed to take out the items stored under the bed board without worrying about any items on the bed board falling to the ground. The height can be adjusted arbitrarily within the range of the lifting position to meet the user's needs for free adjustment of the lifting height or viewing angle. If a collision occurs due to obstruction of vision or improper operation, if forced operation is performed, it will cause damage to the parts and structure of the storage bed board. Therefore, a digital motion processor (DMP) can be used as a six-axis motion sensor to calculate the tilt angle or an acceleration sensor to detect obstacles. The motion state, i.e., the heading angle (yaw), roll angle (roll) and pitch angle (pitch), can be obtained through the digital motion processor (DMP). When the three angle parameters are calculated by the microcontroller and exceed the first predetermined threshold, the storage bed stops lifting immediately, and then the microcontroller calculates the safety distance. After the lifting device is controlled to move in the opposite direction to a certain safety distance, the storage bed stops running. The accelerometer calculates the integral of the acceleration through the microcontroller to determine whether a large net change has occurred in the speed. When the speed exceeds the second predetermined threshold, the storage bed stops lifting immediately, and then the microcontroller calculates the safety distance. After the lifting device is controlled to move in the opposite direction to a certain safety distance, the storage bed stops running. Therefore, the six-axis motion sensor (three-axis gyroscope and three-axis acceleration sensor) must adjust the corresponding configuration detection parameters in real time when the motor of the storage bed rotates. When an obstacle is detected, the microcontroller starts the protection measure to make the lifting device move in the opposite direction to avoid the obstacle, thereby solving the above-mentioned problems.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A new storage bed control circuit, characterized in that: The storage bed includes a bed board, a lifting device arranged on the bed board, and a circuit board connected to the lifting device. The novel storage bed control circuit includes a control unit, a power supply unit, a detection unit, a drive unit, and an interaction unit arranged on the circuit board. The power supply unit, the detection unit, the drive unit, and the interaction unit are all connected to the control unit, and the drive unit is connected to the lifting device. The control unit receives the control instruction sent by the interaction unit to control the driving unit to drive the lifting device to drive the bed board to move, and controls the detection unit to detect the movement state of the bed board to adjust the working state of the driving unit to drive the lifting device; The detection unit includes a first motion sensing module and a second motion sensing module, the first motion sensing module is arranged on the circuit board, and the second motion sensing module is arranged on the bed board; The first motion sensing module and the second motion sensing module are both six-axis motion sensors; the driving unit includes a relay driving circuit connected to the control unit, a buzzer connected to the relay driving circuit, and a motor driving circuit, one end of the motor driving circuit is connected to the relay driving circuit, and the other end of the motor driving circuit is connected to a brushed motor used to drive the lifting device to move.

2. The novel storage bed control circuit according to claim 1 is characterized in that: The control unit includes a chip U6, a USART interface and an I2C interface arranged on the chip U6, the USART interface is connected to the interaction unit, and the I2C interface is connected to the detection unit.

3. The novel storage bed control circuit according to claim 2 is characterized in that: The control unit also includes an indicator light and an electrostatic protection circuit connected to the chip U6.

4. The novel storage bed control circuit according to claim 1 is characterized in that: The novel storage bed control circuit also includes a pulse sampling circuit, and the pulse sampling circuit is connected to the control unit and the motor drive circuit.

5. The novel storage bed control circuit according to claim 1 is characterized in that: The interaction unit includes at least one of a key circuit, a wireless remote control module or a network control module connected to the control unit.

6. The novel storage bed control circuit according to claim 1 is characterized in that: The power supply unit includes a chip U3 and a chip U8, and the chip U3 and the chip U8 are respectively provided with a clock circuit and a filter circuit.

7. The novel storage bed control circuit according to claim 1 is characterized in that: The novel storage bed control circuit also includes a program burning interface connected to the control unit.

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