Intelligent touch elevator calling box for service lift

Abstract

The utility model relates to the technical field of elevator control, in particular to an intelligent touch elevator calling box for a service lift. Comprising a display module, a control module, a power management module, a communication module and an elevator calling box shell used for protecting an internal structure, the control module and the power management module are integrated on the same PCB, and the elevator calling box shell provides installation sites for the display module, the PCB and the communication module. The control module is connected with the display module and the communication module, the power management module is connected with the display module, the control module and the communication module through power lines, and the elevator calling box shell is fixedly connected with the wall of a dumb waiter car through a mounting frame. According to the utility model, the capacitive touch sensor panel is adopted, so that sensitive and accurate touch operation experience is provided, and smooth man-machine interaction is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator control, in particular to an intelligent touch elevator call box for a service elevator. Background Art

[0002] With the booming development of the modern logistics industry and the increasing diversification of building functions, the application scenarios of utility elevators, as vertical transportation equipment specifically designed for transporting small goods, food, medical equipment, and other items, have been greatly expanded. However, due to the complex working environment of utility elevators, they may face harsh conditions such as high temperature, high humidity, high dust, and strong electromagnetic interference. For example, in factory workshops, various mechanical equipment generates electromagnetic radiation and a large amount of dust particles. Traditional casings have poor waterproof and dustproof capabilities, allowing dust and moisture to easily enter the equipment, causing faults such as circuit short circuits and component damage, increasing equipment maintenance costs and downtime, and seriously affecting the normal operation of utility elevators. Moreover, the installation method of traditional elevator call devices is generally fixed and lacks flexibility. It is difficult to adapt to different building environments and the installation requirements of utility elevators. Most can only adopt a single wall-mounted or embedded installation method. The installation process is complicated, requiring professionals to use specific tools and a long installation time. In some special building structures or places with limited space, the installation of traditional elevator call devices is even more difficult or even impossible, limiting the scope of use and convenience of utility elevators. At this stage, there is a need for a smart touch elevator call box for utility elevators. Utility Model Content

[0003] In order to solve the problems of poor environmental adaptability and complicated installation process of traditional elevator calling devices, the utility model provides an intelligent touch elevator calling box for a service elevator.

[0004] In the first aspect, the utility model provides an intelligent touch call box for a service elevator, which adopts the following technical solutions:

[0005] An intelligent touch call box for a service elevator, comprising:

[0006] A display module, a control module, a power management module, a communication module, and a call box housing for protecting the internal structure. The control module and the power management module are integrated into the same PCB board. The call box housing provides installation sites for the display module, the PCB board, and the communication module. The control module is respectively connected to the display module and the communication module. The power management module is respectively connected to the display module, the control module, and the communication module via power cables. The call box housing is fixedly connected to the wall of the service elevator car via a mounting bracket.

[0007] Furthermore, the display module includes an LCD display screen and a display screen driver chip, and the LCD display screen is connected to the display screen driver chip via a parallel interface.

[0008] Furthermore, a capacitive touch sensor panel is installed on the surface of the LCD display screen, the capacitive touch sensor panel is installed to the lower end of the LCD display screen, and the capacitive touch sensor panel and the LCD display screen are connected via a flexible cable.

[0009] Furthermore, the control module includes a microcontroller, and the microcontroller is connected to the display screen driver chip and the control chip of the capacitive touch sensor panel through an SPI communication interface.

[0010] Furthermore, the power management module includes a power conversion chip and a low-voltage dropout linear regulator. The input pin of the power conversion chip is connected to the external DC power supply through the power input interface, and the output pin of the power conversion chip is respectively connected to the display module and the control module through the low-voltage dropout linear regulator. A filter capacitor is connected in parallel at the interface between the low-voltage dropout linear regulator and the display module and the control module.

[0011] Furthermore, the communication module includes an RS485 communication chip and a communication interface, the communication interface is installed to the lower end of the elevator call box housing, the RS485 communication chip is connected to the service elevator main control system through the communication interface, and the RS485 communication chip is connected to the microcontroller through a data line and a control line.

[0012] Furthermore, a plurality of positioning posts are provided inside the elevator call box shell, and the positioning posts are fixedly connected to the positioning holes on the PCB board. The tops of the positioning posts are chamfered and the roots are provided with reinforcing ribs.

[0013] Furthermore, the elevator call box shell adopts a double-layer sealing structure, the inner layer of the elevator call box shell is a sealing rubber ring groove, the outer layer of the elevator call box shell is a sealing rubber ring cover, the capacitive touch sensor panel and the LCD display are fixed between the inner layer and the outer layer of the elevator call box shell, the upper surface of the capacitive touch sensor panel is provided with a touch sensor panel protective shell, and the sealing rubber ring cover is fixedly connected to the surface of the elevator call box shell by screws.

[0014] Furthermore, a fixing buckle is provided on the side of the elevator call box shell, a spring sheet is provided on the upper surface of the elevator call box shell, a slot is provided on the inner side of the mounting frame, the fixing buckle is embedded in the slot, and the spring sheet is supported on the upper end of the mounting frame.

[0015] Furthermore, the fixing buckle includes a fixing clip and a locking column. The fixing clip is connected to the side of the elevator call box shell by snapping. The locking column is nested inside the fixing clip. The locking column is fixed to the four sides of the elevator call box shell through the fixing clip.

[0016] In summary, the present invention has the following beneficial technical effects:

[0017] 1. The call box shell of this utility model adopts a double-layer sealing structure. The inner sealing rubber ring groove cooperates with the outer sealing rubber ring cover to effectively prevent dust, moisture and other impurities from entering the interior, protecting electronic components from erosion. The material of the sealing rubber ring has good weather resistance and sealing performance, and can maintain good protection effect even during long-term use, reducing equipment failures caused by environmental factors and extending the service life of the equipment.

[0018] 2. The power conversion chip and low-voltage difference linear regulator in the power management module of the utility model can adapt to input voltage fluctuations within a certain range, convert the external unstable DC power supply into a stable voltage output, and provide reliable power supply for each module. At the same time, in the communication module, the RS485 communication chip has strong anti-interference ability. It is connected to the microcontroller through data lines and control lines. The communication line adopts differential signal transmission, which effectively reduces the impact of electromagnetic interference on data transmission.

[0019] 3. This utility model adopts a capacitive touch sensor panel to provide a sensitive and accurate touch operation experience. Users can easily perform operations such as floor selection and function setting by touch. The microcontroller quickly responds to touch operations through the SPI communication interface and updates the display content in time, realizing smooth human-computer interaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a schematic diagram of the overall structural connection of an intelligent touch call box for a service elevator according to an embodiment of the present invention.

[0021] Figure 2 This is an overall assembly diagram of an intelligent touch call box for a service elevator and an outer shell in an embodiment of the utility model.

[0022] Figure 3 The utility model is a side view of an outer shell of an intelligent touch call box for a service elevator according to an embodiment of the present invention.

[0023] Figure 4 The present invention is a structural diagram of a capacitive touch sensor panel in an intelligent touch call box for a service elevator according to an embodiment of the present invention.

[0024] Among them, 1. Sealing rubber ring groove; 2. Sealing rubber ring cover; 3. Fixing buckle; 31. Fixing clip; 32. Locking column; 33. Card block; 4. LCD display; 5. Capacitive touch sensor panel; 6. Spring sheet; 7. Touch sensor panel protective shell. DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below with reference to the accompanying drawings.

[0026] Example 1

[0027] Reference Figure 1 , an intelligent touch call box for a service elevator of this embodiment includes:

[0028] A display module, a control module, a power management module, a communication module, and a call box housing for protecting the internal structure. The control module and the power management module are integrated into the same PCB board. The call box housing provides installation sites for the display module, the PCB board, and the communication module. The control module is respectively connected to the display module and the communication module. The power management module is respectively connected to the display module, the control module, and the communication module via power cables. The call box housing is fixedly connected to the wall of the service elevator car via a mounting bracket.

[0029] Specifically,

[0030] like Figure 1 As shown in the figure, when the elevator call box is connected to an external power source, the power management module begins to operate. The power conversion chip (LM2596) converts the input voltage into a stable intermediate voltage. This voltage powers the low-dropout linear regulator, which, after stabilization, provides the operating voltage for the microcontroller (STM32F407) and other components requiring a 3.3V power supply. Furthermore, the 5V voltage directly powers some peripherals (such as some circuits of the RS485 communication chip MAX485). After powering on, the microcontroller first performs hardware initialization to check whether it and its peripherals (such as memory and communication interfaces) are functioning properly. It uses an internal self-test program to check the level status of each pin, the normality of the clock signal, and the correct reading and writing of memory. If a hardware fault is detected, the microcontroller sends a fault code to the service elevator main control system via the display (if displayable) or the communication module, prompting maintenance personnel to perform repairs.

[0031] like Figure 4 As shown, Figure 4 The panel diagram shows the panel after removing the touch sensor panel protective cover 7. When the user touches the capacitive touch sensor panel 5, the capacitive sensing unit on the touch panel will detect the capacitance change caused by the touch. The touch controller chip FT6206 obtains these capacitance change signals in real time through the flexible cable and processes them. It uses a built-in algorithm to calculate the coordinate position of the touch point (including X-axis and Y-axis coordinates) and determines the type of touch operation such as click, slide, long press, etc. Then, the touch controller chip sends information such as touch coordinates and operation type to the microcontroller through the I2C communication interface. Among them, a touch sensor panel protective cover 7 is provided on the outside of the capacitive touch sensor panel 5 to prevent operations caused by accidental touch.

[0032] After receiving the touch operation information, the microcontroller processes it according to pre-set program logic. If the touch operation is to select a floor, the microcontroller first determines whether the selected floor is valid (for example, whether it is within the range of floors allowed for the service elevator to stop). If so, the microcontroller packages the elevator call command according to the communication protocol format and sends it to the service elevator master control system via the RS485 communication module. After receiving the elevator call command, the master control system controls the elevator to the specified floor. During the elevator operation, the microcontroller continuously receives elevator status information from the master control system and updates the display content, such as the elevator's direction of travel and the number of remaining floors. Simultaneously, the microcontroller provides appropriate feedback on the display based on the type of touch operation. For example, after clicking a floor button, the button will briefly highlight or change color to indicate that the user's operation has been received. If the touch operation is to set a parameter (such as adjusting the display brightness or volume), the microcontroller adjusts the operating parameters of the relevant components accordingly and saves the new parameter values ​​to internal memory so that the same settings will be used the next time the system is powered on.

[0033] Place the PCB board where the control module and power management module are located in the elevator call box housing, align the positioning holes on the PCB board with the positioning posts inside the housing, gently press the PCB board to ensure that it is completely fixed on the positioning posts. The chamfered top of the positioning posts helps the PCB board to be smoothly inserted into the positioning holes. Install the sealing rubber ring in the sealing rubber ring groove 1 on the inner layer of the housing, ensuring that the sealing rubber ring is installed flat and without distortion. Then place the capacitive touch sensor panel 5 and LCD display 4 on top of the sealing rubber ring, aligning them with the edge of the housing, paying attention to protecting the display surface, and cover the sealing rubber ring with the sealing rubber ring cover 2.

[0034] like Figure 2 As shown, a snap groove adapted to the fixing clip 31 is designed on the side of the call box shell, and a spring sheet 6 is installed on the upper surface of the call box shell. The depth and width of the snap groove are slightly larger than the thickness and width of the fixing clip 31, which is convenient for inserting the fixing clip 31. The position and spacing of the snap groove are designed according to the layout of the locking column 32 to ensure that after the fixing clip 31 is installed, the locking column 32 can accurately pass through the fixing clip 31 and be fixed in the appropriate position. An inspection cover is provided at the rear end of the call box shell for inspection and maintenance of the internal components of the call box shell. A raised card block 33 is designed on the outer wall of the fixing clip 31. When the fixing clip 31 is inserted into the snap groove, the card block 33 and the groove on the inner wall of the snap groove engage with each other to achieve the initial fixation of the fixing clip 31 on the shell. This snap connection method does not require the use of additional tools, is easy to install and disassemble, and can ensure the stability of the fixing clip 31 during normal use.

[0035] like Figure 3As shown, a nested connection is adopted between the fixing clip 31 and the locking column 32. One end of the locking column 32 is designed with a head with a diameter slightly larger than the column body, and a square groove is designed at the corresponding position on the inner wall of the fixing clip 31. The side length of the groove is slightly larger than the diameter of the head of the locking column 32. When the locking column 32 is inserted into the fixing clip 31, the head can smoothly enter the groove, thereby achieving relative fixation of the locking column 32 and the fixing clip 31. In order to prevent the locking column 32 from accidentally falling out during use, an undercut is provided at the edge of the groove. When the head of the locking column 32 enters the groove, the undercut can clamp the head of the locking column 32, thereby increasing the reliability of the connection. At the same time, the column part of the locking column 32 has anti-slip grooves, which are in close contact with the inner wall of the fixing clip 31, further enhancing the friction and preventing the locking column 32 from sliding in the fixing clip 31.

[0036] The main body of the mounting bracket is made of aluminum alloy through an extrusion molding process, which has the characteristics of high strength and lightness. One side of the mounting bracket is designed with multiple mounting holes for fixed connection with the wall of the service elevator car. The size and spacing of the mounting holes meet the industry standards and can be installed using common expansion screws or self-tapping screws. The other side of the mounting bracket is designed with a slot structure that matches the outer shell of the elevator call box. The width and depth of the slot are precisely designed according to the thickness and overall dimensions of the outer shell of the elevator call box to ensure that the elevator call box can be firmly inserted into the slot through the fixing buckle 3, while facilitating installation and removal. The inside of the slot is provided with a non-slip rubber pad to increase the call The friction between the ladder box and the bracket prevents the elevator call box from sliding in the slot. When installing the elevator call box, the spring sheet 6 is pressed against the upper end of the mounting frame through tension to stabilize it. Then, the buckle is aligned with the installation position (such as the slot or fixing part on the elevator car wall) and the buckle is inserted along the guide surface. As the buckle is inserted, the locking column 32 passes over the edge of the installation position under the action of elasticity, and then is snapped into the groove of the installation position under the action of elastic restoring force, thereby realizing rapid fixation of the elevator call box. When disassembling the elevator call box, it is only necessary to apply a certain external force to disengage the locking column 32 of the buckle from the groove of the installation position to remove the elevator call box.

[0037] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. An intelligent touch call box for a service elevator, characterized in that: include: A display module, a control module, a power management module, a communication module, and a call box housing for protecting the internal structure. The control module and the power management module are integrated into the same PCB board. The call box housing provides installation sites for the display module, the PCB board, and the communication module. The control module is respectively connected to the display module and the communication module. The power management module is respectively connected to the display module, the control module, and the communication module via power cables. The call box housing is fixedly connected to the wall of the service elevator car via a mounting bracket.

2. The intelligent touch call box for a service elevator according to claim 1, characterized in that: The display module includes an LCD display screen and a display screen driver chip, and the LCD display screen is connected to the display screen driver chip via a parallel interface.

3. The intelligent touch call box for a service elevator according to claim 2, characterized in that: A capacitive touch sensor panel is installed on the surface of the LCD display screen. The capacitive touch sensor panel is installed at the lower end of the LCD display screen. The capacitive touch sensor panel and the LCD display screen are connected via a flexible cable.

4. The intelligent touch call box for a service elevator according to claim 3, characterized in that: The control module includes a microcontroller, and the microcontroller is connected to a display screen driver chip and a control chip of a capacitive touch sensor panel through an SPI communication interface.

5. The intelligent touch call box for a service elevator according to claim 4, characterized in that: The power management module includes a power conversion chip and a low-voltage dropout linear regulator. The input pin of the power conversion chip is connected to the external DC power supply through the power input interface. The output pin of the power conversion chip is respectively connected to the display module and the control module through the low-voltage dropout linear regulator. The low-voltage dropout linear regulator is connected in parallel with a filter capacitor at the interface with the display module and the control module.

6. The intelligent touch call box for a service elevator according to claim 1, characterized in that: The communication module includes an RS485 communication chip and a communication interface. The communication interface is installed at the lower end of the elevator call box housing. The RS485 communication chip is connected to the service elevator main control system through the communication interface. The RS485 communication chip is connected to the microcontroller through a data line and a control line.

7. The intelligent touch call box for a service elevator according to claim 1, characterized in that: A plurality of positioning columns are provided inside the elevator call box shell, and the positioning columns are fixedly connected to the positioning holes on the PCB board. The tops of the positioning columns are chamfered and the roots are provided with reinforcing ribs.

8. The intelligent touch call box for a service elevator according to claim 3, characterized in that: The elevator call box shell adopts a double-layer sealing structure, the inner layer of the elevator call box shell is a sealing rubber ring groove, the outer layer of the elevator call box shell is a sealing rubber ring cover, the capacitive touch sensor panel and LCD display are fixed between the inner and outer layers of the elevator call box shell, the upper surface of the capacitive touch sensor panel is provided with a touch sensor panel protective shell, and the sealing rubber ring cover is fixedly connected to the surface of the elevator call box shell by screws.

9. The intelligent touch call box for a service elevator according to claim 8, characterized in that: A fixing buckle is provided on the side of the elevator call box shell, a spring sheet is provided on the upper surface of the elevator call box shell, a slot is provided on the inner side of the mounting frame, the fixing buckle is embedded in the slot, and the spring sheet is supported on the upper end of the mounting frame.

10. The intelligent touch call box for a service elevator according to claim 9, characterized in that: The fixing buckle includes a fixing clip and a locking column. The fixing clip is connected to the side of the elevator call box shell by a snap-fitting manner. The locking column is nested in the fixing clip. The locking column is fixed to the four sides of the elevator call box shell through the fixing clip.

Images