A remote control system for a goods lift car

Abstract

The application discloses a remote control system of a goods elevator car, comprising: a car module, comprising a car control board, an in-car monitoring camera, a car load detection device, a first mode control switch, the car control board is arranged in the elevator car, the first mode control switch is used for switching the operation mode of the elevator car, when the first mode control switch starts the unmanned delivery mode; a control cabinet, comprising an elevator main board, the car control board is in communication connection with the elevator main board; a remote monitoring operation module, comprising a door closing control unit, a door closing prompting unit and a touch control screen, the elevator main boards of several elevators are in communication connection with the door closing control unit, the door closing control unit is used for receiving a first mode switching signal and generating a door closing instruction and a mode release instruction. Compared with the prior art, the application meets the complex unloading requirements of the goods elevator and reduces the labor input.

Description

Technical Field

[0001] This invention relates to the field of elevator control system technology, and in particular to a remote control system for a freight elevator car. Background Technology

[0002] When goods need to be transported up and down, freight elevators are typically used. However, freight elevators have long unloading times and require manual operation, impacting their transfer capacity and manpower, thus affecting unloading efficiency. Therefore, to reduce manpower requirements, specific control modes are often used to automatically open and close the doors on specific floors. For example, Chinese Patent CN201910163965.5 discloses a freight elevator control method and system. By setting specific modes and control commands to enter those modes in the freight elevator control system, users can control the elevator car's movement in real-time within the specific mode to complete the transfer of goods. Essentially, the freight elevator control system only needs to receive one control command from the user outside the car; the elevator can then open its doors to load goods on the first target floor and open its doors to unload goods on the second target floor. Compared to traditional freight elevator control methods, this eliminates the need for users to enter the car or select the desired floor on the internal call panel, significantly saving labor costs and car space.

[0003] Existing patents involve stopping the elevator car at the target floor for a set period of time to unload goods. However, unloading in freight elevators is complex, with varying quantities and loading / unloading difficulties leading to inconsistent and unpredictable unloading times. Simply setting the unloading time through a program is insufficient to meet these complex unloading needs. Summary of the Invention

[0004] The purpose of this invention is to provide a remote control system for freight elevator cars to meet the complex unloading needs of freight elevators and reduce manpower input.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a remote control system for a freight elevator car, comprising:

[0006] The car module includes a car control board, an in-car monitoring camera, a car load detection device, and a first mode control switch. The car control board is installed inside the elevator car. The in-car monitoring camera is connected to the car control board and is used to collect images inside the elevator car. The car load detection device is connected to the car control board and is used to detect the weight of goods inside the elevator car in real time. The first mode control switch is connected to the car control board and is installed inside the elevator car. The first mode control switch is used to switch the operating mode of the elevator car. The operating modes of the elevator car include a normal operating mode and an unmanned delivery mode. When the first mode control switch activates the unmanned delivery mode, it generates a first mode switching signal and transmits it to the car control board.

[0007] The control cabinet includes an elevator main board and a car control board that communicates with the elevator main board.

[0008] The remote monitoring and control module includes a door closing control unit, a door closing prompt unit, and a touch control screen. The elevator mainboards of several elevators are communicatively connected to the door closing control unit. One touch control screen corresponds to one elevator. After receiving the first mode switching signal, the door closing control unit generates a touch screen start command to control the touch control screen to light up. The touch control screen is used to display video images captured by the monitoring camera in the corresponding elevator car. The touch control screen is used to receive door closing control commands generated by the monitoring personnel touching the screen. The door closing prompt unit is connected to the car load detection device. The door closing prompt unit is used to control the indicator light on the outside of the touch control screen to light up based on the real-time weight of the goods inside the car detected by the car load detection device. The door closing control unit is used to receive the first mode switching signal and generate door closing command and mode cancellation command.

[0009] As a further description of the above technical solution:

[0010] The door closing control unit includes a signal receiving subunit and a signal generating subunit. The signal receiving subunit is used to communicate with the elevator main board, and the signal generating subunit is used to generate the elevator door closing control signal based on the start command generated after the first mode switching signal and the door closing control command.

[0011] As a further description of the above technical solution:

[0012] The indicator lights consist of four lights arranged around the perimeter of the touch control screen.

[0013] As a further description of the above technical solution:

[0014] The door closing prompt unit includes a data analysis subunit and a light control subunit. The data analysis subunit is used to calculate the proportion of the remaining cargo to the initial total cargo based on the weight of the cargo inside the elevator car detected in real time by the car load detection device after the car reaches the target floor and the door opens. The light control subunit is used to control the light to turn off based on the calculation results of the light control subunit.

[0015] As a further description of the above technical solution:

[0016] The door closing prompt unit also includes an abnormal prompt subunit. The abnormal prompt subunit is used to generate an abnormal prompt signal when the time it takes for the car load detection device to detect that there are goods inside the car and the weight of the goods remains unchanged exceeds a set time after the car arrives at the target floor and the door is opened. The lamp control subunit is used to control the lamp to display red light according to the above abnormal prompt signal.

[0017] As a further description of the above technical solution:

[0018] The door closing reminder unit also includes an automatic door closing subunit. The automatic door closing subunit is used to detect that there are no objects inside the car after the car arrives at the target floor and the door opens, and the time without objects exceeds the set time. At the same time, it compares the real-time image inside the car obtained by the monitoring camera inside the car with the pre-stored empty car image, generates an automatic door opening signal and transmits it to the door closing control unit.

[0019] As a further description of the above technical solution:

[0020] The door closing reminder unit also includes an efficiency statistics subunit and a door closing pre-reminder subunit. The efficiency statistics subunit is used to calculate the rate at which the weight of the goods decreases after the car arrives at the target floor and the door opens, based on the real-time weight data of the goods inside the car detected by the car load detection device. The door closing pre-reminder subunit is connected to a voice prompt device. The door closing pre-reminder subunit is used to calculate the expected unloading time of the goods based on the rate at which the weight of the goods decreases and the weight data of the goods inside the car. The door closing pre-reminder subunit controls the voice prompt device to issue a voice prompt based on the expected unloading time.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0022] 1. In the unmanned delivery mode of this invention, the elevator car can only close its doors through instructions issued by the remote monitoring and control module. After the doors are closed, the elevator car is directly transported to the target floor without responding to the call requests from other floors.

[0023] 2. In this invention, one monitoring personnel can simultaneously monitor the operation of multiple freight elevators, meeting the complex unloading needs of the freight elevators while reducing manpower input. The remote monitoring and control module also prompts the monitoring personnel to close the elevator car doors in a timely manner after unloading through the door closing reminder unit, ensuring the freight elevator's cargo transportation efficiency and eliminating the need for the monitoring personnel to constantly monitor the touch control panel, thus reducing their workload and allowing them to manage multiple freight elevators simultaneously. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a system architecture diagram of a remote control system for a freight elevator car.

[0026] Figure 2 This is an architecture diagram of the door closing control unit in a remote control system for a freight elevator car.

[0027] Figure 3 This is a schematic diagram of the arrangement of indicator lights in a remote control system for a freight elevator car.

[0028] Legend:

[0029] 1. Touch control screen; 2. Indicator light; 21. Light body. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0032] Please see Figure 1-3 This invention provides a technical solution: a remote control system for a freight elevator car, comprising:

[0033] The car module includes a car control board, an in-car monitoring camera, a car load detection device, and a first mode control switch. The car control board is installed inside the elevator car. The in-car monitoring camera is connected to the car control board and is used to collect images inside the elevator car. The car load detection device is connected to the car control board and is used to detect the weight of goods inside the elevator car in real time. The first mode control switch is connected to the car control board and is installed inside the elevator car. The first mode control switch is used to switch the operating mode of the elevator car. The operating modes of the elevator car include a normal operating mode and an unmanned delivery mode. When the first mode control switch activates the unmanned delivery mode, it generates a first mode switching signal and transmits it to the car control board.

[0034] The control cabinet includes an elevator main board and a car control board that communicates with the elevator main board.

[0035] The remote monitoring and control module includes a door closing control unit, a door closing prompt unit, and a touch control screen 1. The elevator mainboards of several elevators are communicatively connected to the door closing control unit. One touch control screen 1 corresponds to one elevator. After receiving the first mode switching signal, the door closing control unit generates a touch screen start command to control the touch control screen 1 to light up. The touch control screen 1 is used to display video images captured by the monitoring camera in the corresponding elevator car. The touch control screen 1 is used to receive door closing control commands generated by the monitoring personnel touching the screen. The door closing prompt unit is connected to the car load detection device. The door closing prompt unit is used to control the indicator light 2 on the outside of the touch control screen 1 to light up according to the real-time weight of the goods inside the car detected by the car load detection device. The door closing control unit is used to receive the first mode switching signal and generate door closing command and mode cancellation command.

[0036] Under normal circumstances, the elevator car operates in the regular mode, just like a regular elevator. If users do not wish to continuously control the elevator car door during unloading, or if there are many goods and it is inconvenient for personnel to enter the elevator, they can set the target floor and activate the unmanned delivery mode via the first mode control switch. In this mode, the elevator car door can only be closed by monitoring personnel through a remote monitoring module, and it only opens when the goods reach the target floor, effectively improving the efficiency and safety of freight elevator deliveries.

[0037] Passengers inside the elevator car activate the unmanned delivery mode via the first mode control switch, allowing the remote monitoring and control module to take over the door closing control and remotely control the car to close. In unmanned delivery mode, the elevator car can only close its doors via commands issued by the remote monitoring and control module. After closing, the elevator car will directly travel to the target floor without responding to calls from other floors.

[0038] The car control board transmits the first mode switching signal to the remote monitoring and control module through the elevator mainboard. The touch control screen lights up and displays the images of the elevator car interior captured by the monitoring camera inside the car. The monitoring personnel can understand the loading and unloading of goods through the touch control screen and remotely control the car door to close. After a goods transport is completed, the monitoring personnel manually deactivate the unmanned delivery mode.

[0039] One monitoring operator can monitor the operation of multiple freight elevators simultaneously, meeting the complex unloading needs of freight elevators while reducing manpower. The remote monitoring and control module also prompts the monitoring operator to close the elevator car door in a timely manner after unloading through the door closing reminder unit, ensuring the efficiency of freight elevator cargo transportation, and eliminating the need for the monitoring operator to constantly monitor the touch control panel, reducing the workload of the monitoring operator and enabling the monitoring operator to manage multiple freight elevators at the same time.

[0040] The door closing control unit includes a signal transceiver subunit and a signal generation subunit. The signal receiving subunit is used to communicate with the elevator mainboard, while the signal generation subunit is used to generate a start command based on the first mode switching signal and an elevator door closing control signal based on the door closing control command. The door closing control unit receives signals from or sends signals to the elevator mainboard through the signal transceiver subunit to achieve communication between the car and the remote monitoring and control module, enabling remote control of the car. For example, after the signal generation subunit generates the elevator door closing control signal based on the door closing control command, it transmits it to the elevator mainboard through the signal transceiver subunit, and then to the car control board to control the car to close the car door.

[0041] The indicator light 2 consists of four light bodies 21 arranged around the perimeter of the touch control screen 1. By utilizing the changes in the light emission of the light bodies 21 and their special arrangement, the touch control screen 1 is better highlighted, effectively prompting monitoring personnel to take timely action.

[0042] The door closing prompt unit includes a data analysis subunit and a lamp control subunit. The data analysis subunit is used to calculate the proportion of the remaining goods to the initial total goods based on the weight of the goods inside the elevator car detected in real time by the car load detection device after the car reaches the target floor and the door opens. The lamp control subunit is used to control the lamp 21 to turn off based on the calculation results of the lamp control subunit.

[0043] Specifically, when the remaining goods account for less than 75% of the initial total goods, the first light 21 is turned off; when the remaining goods account for less than 50% of the initial total goods, the second light 21 is turned off clockwise; when the remaining goods account for less than 25% of the initial total goods, the third light 21 is turned off clockwise; and when the goods are emptied, the fourth light 21 is turned off clockwise.

[0044] By sequentially extinguishing the four lights 21 in indicator light 2, the unloading status is externally indicated, eliminating the need for monitoring personnel to constantly monitor the touch control panel 1. This allows for effective monitoring of the unloading progress of each freight elevator when controlling multiple elevators simultaneously, facilitating timely door closing. It also prevents monitoring personnel from failing to close the car doors in a timely manner, thus ensuring the efficiency of the freight elevator operation.

[0045] The door closing notification unit also includes an abnormality notification subunit. This subunit generates an abnormality notification signal if, after the elevator car reaches the target floor and the door opens, the car load detection device detects goods inside the car for a set period of time, and the weight of the goods remains unchanged. The light control subunit then controls the light 21 to display a red light based on this abnormality notification signal. This alerts monitoring personnel that an abnormality has occurred during the elevator unloading process, prompting them to address the issue promptly.

[0046] The door closing notification unit also includes an automatic door closing subunit. This subunit detects that after the elevator car reaches the target floor and the door opens, the car load detection device detects that there are no objects inside the car and that the time without objects exceeds a set duration. Simultaneously, it compares the real-time image of the car's interior captured by the in-car monitoring camera with a pre-stored image of the car being empty. Based on this comparison, it generates an automatic door opening signal and transmits it to the door closing control unit. This accurate determination of elevator vacancy allows for automatic door closing when monitoring personnel cannot close the car door in time, preventing any impact on the freight elevator's operating efficiency.

[0047] The door closing prompt unit also includes an efficiency statistics subunit and a door closing pre-reminder subunit. The efficiency statistics subunit calculates the rate at which the cargo weight decreases (i.e., unloading efficiency) based on real-time data from the car's load detection device after the elevator car reaches the target floor and the doors open. The door closing pre-reminder subunit, connected to a voice prompt device, calculates the expected unloading time based on the rate of weight decrease and the cargo weight data. It then controls the voice prompt device to issue a voice prompt based on the expected unloading time. This calculated cargo loading and unloading efficiency provides advance notice to monitoring personnel, ensuring timely door closing commands and improving the elevator's operational efficiency.

[0048] The efficiency statistics subunit identifies the goods in the car by comparing the images of the goods inside the car captured by the monitoring camera inside the car with the pre-stored images of the goods models in the database. It then associates and stores the goods in the car with the unloading efficiency of each unmanned delivery mode, and then calculates the unloading efficiency of the goods. This data is then used for personnel evaluation in the future.

[0049] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A remote control system for a freight elevator car, characterized in that, include: The elevator car module includes a car control board, an in-car monitoring camera, a car load detection device, and a first mode control switch. The car control board is installed inside the elevator car. The in-car monitoring camera is connected to the car control board and is used to collect images inside the elevator car. The car load detection device is connected to the car control board and is used to detect the weight of goods inside the elevator car in real time. The first mode control switch is connected to the car control board and is installed inside the elevator car. The first mode control switch is used to switch the operating mode of the elevator car. The operating modes of the elevator car include a normal operating mode and an unmanned delivery mode. When the first mode control switch activates the unmanned delivery mode, it generates a first mode switching signal and transmits it to the car control board. A control cabinet, which includes an elevator main board, wherein the car control board is communicatively connected to the elevator main board; The remote monitoring and control module includes a door closing control unit, a door closing prompt unit, and a touch control screen (1). The elevator mainboards of several elevators are communicatively connected to the door closing control unit. Each touch control screen (1) corresponds to one elevator. After receiving the first mode switching signal, the door closing control unit generates a touch screen start command and controls the touch control screen (1) to light up. The touch control screen (1) is used to display video images collected by the monitoring camera in the corresponding elevator car. The touch control screen (1) is used to receive the door closing control command generated by the monitoring personnel touching the screen. The door closing prompt unit is connected to the car load detection device. The door closing prompt unit is used to control the prompt light (2) on the outside of the touch control screen (1) to light up according to the weight of the cargo inside the car detected in real time by the car load detection device. The door closing control unit is used to receive the first mode switching signal and generate a door closing command and a mode release command.

2. The remote control system for a freight elevator car according to claim 1, characterized in that, The door closing control unit includes a signal transceiver subunit and a signal generation subunit. The signal transceiver subunit is used to communicate with the elevator mainboard, and the signal generation subunit is used to generate an elevator door closing control signal based on the start command generated after the first mode switching signal and the door closing control command.

3. The remote control system for a freight elevator car according to claim 2, characterized in that, The indicator light (2) includes four light bodies (21) arranged circumferentially along the touch control screen (1).

4. The remote control system for a freight elevator car according to claim 3, characterized in that, The door closing prompt unit includes a data analysis subunit and a lamp control subunit. The data analysis subunit is used to calculate the proportion of the remaining goods to the initial total goods based on the weight of the goods inside the elevator car detected in real time by the car load detection device after the car reaches the target floor and opens the door. The lamp control subunit is used to control the lamp (21) to turn off based on the calculation results of the lamp control subunit.

5. The remote control system for a freight elevator car according to claim 4, characterized in that, The door closing prompt unit also includes an abnormal prompt subunit. The abnormal prompt subunit is used to generate an abnormal prompt signal when the time it takes for the car load detection device to detect that there are goods inside the car and the weight of the goods remains unchanged exceeds a set time after the car arrives at the target floor and opens the door. The lamp control subunit is used to control the lamp (21) to display red light according to the above abnormal prompt signal.

6. The remote control system for a freight elevator car according to claim 5, characterized in that, The door closing prompt unit also includes an automatic door closing subunit. The automatic door closing subunit is used to detect, after the car arrives at the target floor and the door opens, that there are no objects inside the car and the time without objects exceeds a set time. At the same time, it compares the real-time image inside the car obtained by the monitoring camera inside the car with the pre-stored empty car image, generates an automatic door opening signal and transmits it to the door closing control unit.

7. The remote control system for a freight elevator car according to claim 6, characterized in that, The door closing prompt unit further includes an efficiency statistics subunit and a door closing pre-reminder subunit. The efficiency statistics subunit is used to calculate the rate at which the weight of the goods decreases after the car arrives at the target floor and the door opens, based on the real-time weight data of the goods inside the car detected by the car load detection device. The door closing pre-reminder subunit is connected to a voice prompt device. The door closing pre-reminder subunit is used to calculate the expected unloading time of the goods based on the rate at which the weight of the goods decreases and the weight data of the goods inside the car. The door closing pre-reminder subunit controls the voice prompt device to issue a voice prompt based on the expected unloading time.

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