Liquid crystal nurse station

Abstract

The utility model relates to a liquid crystal nurse station. The liquid crystal nurse station is used in cooperation with an electric medical bed. The device comprises a liquid crystal touch screen, a master control MCU module, a power supply module, a storage module, a display module, an RTC clock module, an audio module, a button module and a CAN communication module. The main control MCU module is electrically connected with the power supply module, the storage module, the display module, the RTC clock module, the audio module, the key module and the CAN communication module respectively; the CAN communication module is electrically connected with the electric bed control box and the weighing module respectively; the main control MCU module obtains weight data collected by the weighing module through the CAN communication module and interacts with the electric bed control box through the CAN communication module. The nurse table is provided with the large-size display screen and is combined with the control circuit, so that the nurse table is complete in function, multiple functions are integrated, and nursing operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electric medical beds and electric nursing beds, in particular to a liquid crystal nurse station. Background Art

[0002] Medical beds are indispensable in hospitals as medical items for examination, treatment, and rescue. Currently, medical beds on the market are mainly divided into manual medical beds and electric medical beds, among which electric medical beds are gradually becoming the mainstream due to their convenient operation and comfortable experience.

[0003] Ordinary electric medical beds are already a very mature industry. The operation of conventional electric medical beds on the market still mainly relies on hand controllers or wire controllers. In actual applications in the medical field, in order to realize functions such as displaying and recording medical data, it is usually necessary to equip a nurse station. These nurse stations are either fully operated with buttons or with a small screen combined with button operations. It is not very convenient to display the status, operation or various data records of existing beds, and it is difficult to display them clearly. The control system of the entire electric medical bed is also relatively cumbersome, and there are problems such as difficulty in observation and incomplete functions. Therefore, it is necessary to equip a large, easy-to-operate, and highly functionally integrated LCD nurse station.

[0004] Similarly, electric nursing beds also have the above problems. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a liquid crystal nurse station.

[0006] The technical solution adopted by the utility model to achieve the above-mentioned purpose is: a liquid crystal nurse station, which is used in conjunction with an electric medical bed or an electric nursing bed, includes a liquid crystal touch screen, and also includes a main control MCU module, a power module, a storage module, a display module, an RTC clock module, an audio module, a key module and a CAN communication module; the main control MCU module is electrically connected to the power module, the storage module, the display module, the RTC clock module, the audio module, the key module and the CAN communication module respectively; the CAN communication module is electrically connected to the electric bed control box and the weighing module in the electric medical bed or the electric nursing bed respectively; the main control MCU module obtains the weight data collected by the weighing module through the CAN communication module, and interacts with the electric bed control box through the CAN communication module; the display module is electrically connected to the liquid crystal touch screen.

[0007] The storage module includes an SD card unit and a flash storage unit, and both the SD card unit and the flash storage unit are electrically connected to the main control MCU module.

[0008] The button module is electrically connected to a physical button, and the physical button is arranged on the surface of the nurse station.

[0009] The physical buttons include a power button and a CPR button.

[0010] The main control MCU module adopts SWM34SVE_LQFP100_14X14 chip.

[0011] The power supply module includes a DC-DC chip for converting the power provided by the electric bed control box into 5V direct current, and also includes a step-down chip for converting the 5V direct current into 3.3V direct current.

[0012] The DC-DC chip adopts TMI3492, and its output end is electrically connected to the display module; the buck chip adopts AMS1117-3.3, and its output end is connected to the main control MCU module.

[0013] The display module includes a first DC-DC chip for converting the 5V direct current into an analog voltage required by the liquid crystal touch screen, and a second DC-DC chip for boosting the 5V direct current to a voltage required by the backlight of the liquid crystal touch screen.

[0014] The audio module adopts the audio power amplifier chip TC8002D.

[0015] The RTC clock module adopts the real-time clock chip RX8900CE.

[0016] The utility model has the following advantages and beneficial effects:

[0017] 1. The utility model is equipped with a large-size display screen, combined with a control circuit, so that the nurse station is fully functional and realizes multiple functions (bed operation, personal information, data recording, settings, etc.) in one, which is convenient for nursing operations.

[0018] 2. Except for the power button and CPR button, all other functions of the utility model are operated on the LCD screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the overall structural diagram of the embodiment of the utility model;

[0020] Figure 2 This is a circuit diagram of a power module according to an embodiment of the present utility model;

[0021] Figure 3a This is a circuit schematic diagram of the SD card unit in the storage module of an embodiment of the utility model;

[0022] Figure 3bA circuit schematic diagram of a flash storage unit in a storage module according to an embodiment of the present utility model;

[0023] Figure 4 The circuit diagram of the audio module of the present utility model embodiment

[0024] Figure 5 The circuit schematic diagram of the RTC clock module of the utility model embodiment

[0025] Figure 6 This is a circuit diagram of the key module of the embodiment of the utility model

[0026] Figure 7 This is a circuit diagram of the main control MCU module of the utility model embodiment

[0027] Figure 8 The figure is a circuit diagram of a display module according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] The following embodiments are only used to more clearly illustrate the technical solution of the present utility model, and are not intended to limit the protection scope of the present utility model.

[0030] In the embodiment of the utility model, the overall structure block diagram is as follows Figure 1 As shown, the entire LCD nurse station is composed of a main control MCU module, a power module, a storage module, a display module, an RTC clock module, an audio module, a button module, and a CAN communication module. The main control MCU module controls each module by communicating with each module.

[0031] RTC clock realizes time control and realizes display and operation on the LCD screen.

[0032] The storage module includes an SD card unit and a flash storage unit to store data (weighing data, personal information data).

[0033] The main control MCU module communicates with the external electric bed control box through the CAN communication module, sends the user's bed control command input through the touch screen to the electric bed control box, and controls the motor to complete the bed movement; it can also obtain the weight data collected by the external weighing module through the CAN communication module. The weighing module obtains weight data through sensors.

[0034] A button module is electrically connected to a physical button, and the physical button is arranged on the surface of the nurse station to realize the on and off control of the LCD screen and the CPR function control. The physical button includes a power button and a CPR button.

[0035] The audio module can be used with the LCD screen to play related promotional videos, etc.

[0036] Figure 2 The circuit schematic diagram of the power module. IC11 is a DC-DC chip, Q2 is a MOS tube, and T4 is a triode. The circuit composed of T4 and Q2 can realize low-power operation of the nurse station. When the external power supply is powered off, the battery is used for power supply. At this time, it is in low-power operation mode, that is, various functions operate normally. The VS in the figure is the power supply provided by the electric bed control box to the nurse station. The main power or battery is switched by the electric bed control box. However, if there is no operation on the screen or button within the set time (for example, 1 minute), the main control MCU module will control the nurse station to power off, the LCD touch screen will go out, and the execution of various functions will stop until the physical button is pressed. Any button will be powered again, and only when the KEY1 button is pressed will the LCD touch screen be re-lit. The DC5V converted by the DC-DC chip powers the display module. IC4 is an LDO chip, and the converted DC3.3V powers the main control MCU module. The J6 terminal block is connected to the electric bed control box, where CANH and CANL are CAN communication signals, +VS is the power provided by the electric bed control box to the nurse station, and 5V_INT is the low-power wake-up signal provided by the electric bed control box.

[0037] FIG3 is a circuit diagram of a storage module. Figure 3a TF1 is a TF card holder (for connecting to an SD card). The SD card stores the operation interface of the LCD screen and other audio and video files. Figure 3b IC2 in the figure is a flash storage chip, which can store data (weighing data, personal information data). The TF card is connected to the MCU pins through SD_CK, SD_D0, SD_D1, SD_D2, SDCLK, and SD_CMD to achieve communication. The flash storage chip is connected to the MCU through the FS_SSEL, FS_MISO, FS_MOSI, FS_D2, and FS_D3 pins to achieve data storage.

[0038] Figure 4 The circuit diagram of the audio module. The audio module includes an audio amplifier chip TC8002D for amplifying the small audio signal output by the main control MCU module, and its output signal is used to drive the external speaker. IC6 is an audio amplifier chip, which amplifies the small audio signal output by the main control MCU module, DAC_O (audio analog signal) and STB (mute signal) are connected to the MCU, and the DAC_O signal is amplified and output through SPK1 and SPK2, and drives the external speaker output.

[0039] Figure 5The circuit schematic diagram of the RTC clock module. The RTC clock module includes a farad capacitor and a real-time clock chip RX8900CE for providing real-time time to the main control MCU module; the output end of the real-time clock chip is connected to the main control MCU module; the negative electrode of the farad capacitor is grounded, and the positive electrode is connected to the input end of the real-time clock chip through a resistor. Among them, IC9 is a real-time clock chip that provides real-time time to the main control MCU module. C67 is a farad capacitor that can provide power to the real-time clock chip when the system is powered off to ensure that the real-time clock is not affected by power failure. RTC_INT, RX_SCL, and RX_SDA are connected to the MCU pins for IIC communication to obtain real-time clock information.

[0040] Figure 6 The circuit diagram of the key module is shown in Figure 1. KEY1 and KEY2 are physical keys, namely the power key and CPR key. The Key1 and Key2 pins are connected to the MCU pins to detect key presses.

[0041] Figure 7 This is the circuit schematic of the main control MCU module. IC1 is the MCU, which processes all data and communications. IC14 is a clock spread spectrum chip, which modulates the peak clock to change it from a narrowband clock signal to a spectrum with sidebands, dispersing the clock's peak energy to multiple frequency bands in the spread spectrum area, thereby reducing the peak energy and suppressing EMI.

[0042] Figure 8 The circuit diagram of the display module. IC7 is the first DC-DC chip, which boosts 5V to the analog voltage (AVDD) and TFT Gate ON Voltage (VGH) and TFT Gate OFF Voltage (VGL) required by the LCD touch screen. IC5 is the second DC-DC chip, which boosts 5V to the voltage required by the LCD touch screen backlight and realizes constant current driving of the backlight LED. J5 is the LCD touch screen interface, which transmits RGB signals, clock signals and synchronization signals. J8 is the LCD touch screen interface, which realizes data communication for the LCD touch screen.

Claims

1. A liquid crystal nurse station, which is used in conjunction with an electric medical bed or an electric nursing bed, characterized in that: It includes a liquid crystal touch screen and also includes a main control MCU module, a power module, a storage module, a display module, an RTC clock module, an audio module, a key module and a CAN communication module; the main control MCU module is electrically connected to the power module, the storage module, the display module, the RTC clock module, the audio module, the key module and the CAN communication module respectively; the CAN communication module is electrically connected to the electric bed control box and the weighing module in the electric medical bed or the electric nursing bed respectively; the main control MCU module obtains the weight data collected by the weighing module through the CAN communication module, and interacts with the electric bed control box through the CAN communication module; the display module is electrically connected to the liquid crystal touch screen.

2. A liquid crystal nurse station according to claim 1, characterized in that: The storage module includes an SD card unit and a flash storage unit, and both the SD card unit and the flash storage unit are electrically connected to the main control MCU module.

3. The liquid crystal nurse station according to claim 1, characterized in that: The button module is electrically connected to a physical button, and the physical button is arranged on the surface of the nurse station.

4. A liquid crystal nurse station according to claim 3, characterized in that: The physical buttons include a power button and a CPR button.

5. The liquid crystal nurse station according to claim 1, characterized in that: The main control MCU module adopts SWM34SVE_LQFP100_14X14 chip.

6. The liquid crystal nurse station according to claim 1, characterized in that: The power supply module includes a DC-DC chip for converting the power provided by the electric bed control box into 5V direct current, and also includes a step-down chip for converting the 5V direct current into 3.3V direct current.

7. The liquid crystal nurse station according to claim 6, characterized in that: The DC-DC chip adopts TMI3492, and its output end is electrically connected to the display module; the buck chip adopts AMS1117-3.3, and its output end is connected to the main control MCU module.

8. The liquid crystal nurse station according to claim 6, characterized in that: The display module includes a first DC-DC chip for converting the 5V direct current into an analog voltage required by the liquid crystal touch screen, and a second DC-DC chip for boosting the 5V direct current to a voltage required by the backlight of the liquid crystal touch screen.

9. The liquid crystal nurse station according to claim 1, characterized in that: The audio module includes an audio power amplifier chip TC8002D for amplifying the small audio signal output by the main control MCU module, and its output signal is used to drive an external speaker.

10. The liquid crystal nurse station according to claim 1, characterized in that: The RTC clock module includes a farad capacitor and a real-time clock chip RX8900CE for providing real-time time to the main control MCU module; the output end of the real-time clock chip is connected to the main control MCU module; the negative electrode of the farad capacitor is grounded, and the positive electrode is connected to the input end of the real-time clock chip through a resistor.

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