Crown block getting-on and getting-off notification system

Abstract

A crown block getting-on and getting-off notification system belongs to the technical field of crown block safety auxiliary equipment. Which comprises a cab host arranged in a cab, an extension set is arranged at each boarding gate, the cab host is connected with each extension set, and the system is characterized in that the cab host is connected with each extension set in a two-wire system connection mode. In the crown block getting-on and getting-off informing system, the cab host is connected with each extension set in a two-wire system connection mode, and the two wires connected between the cab host and the extension sets achieve power supply of the cab host to the extension sets and transmission between the extension sets at the same time. Therefore, the complexity of wiring between the cab host and the extension set and the number of wiring harnesses are greatly reduced. And a display screen is arranged at the safety door, so that the request state of getting on and off is conveniently displayed. Communication between the cab host and the extensions is realized through the POWERBUS communication module or the M-BUS communication module, and cascade connection of each extension is facilitated.

Description

TECHNICAL FIELD

[0001] The crane up and down informing system belongs to the technical field of crane safety auxiliary equipment. BACKGROUND

[0002] At present, the crane as a special equipment for large material handling plays an important role in industrial production. Since the crane is relatively large, the distance between the cab and the boarding port is often far apart. Therefore, there is a strict safety management system for crane operation in the industry standard. The operator needs to contact and inform the driver in the cab in advance when getting on and off the crane to avoid danger. In the prior art, the contact and notification between the boarding port and the cab is generally realized by an informing system. The informing system includes a main machine arranged in the cab and a branch machine arranged at each boarding port. The main machine is connected with each branch machine. When the personnel need to board or get off, the branch machine sends a request to the main machine. After obtaining the confirmation of the driver in the cab, the personnel can get on or off the crane.

[0003] The traditional informing system realizes the logical relationship of the control circuit through various switch elements and their contacts. For example, the technical solution described in the Chinese utility model patent with the application number 200620114608.8 and the application date of May 9, 2006, entitled "Up and down safety device for crane", and the technical solution described in the Chinese invention patent with the application number 201210054784.7 and the application date of March 5, 2012, entitled "Request contact method and device for entering crane type mobile equipment".

[0004] With the continuous development of technology, some informing systems based on controllers and various communication protocols and bus technologies have appeared on the market. For example, the technical solution described in the Chinese invention patent with the application number 202110411612.X and the application date of April 16, 2021, entitled "Real-time alarm system for illegal operation of steelmaking crane", the technical solution described in the Chinese utility model patent with the application number 201721044407.X and the application date of August 21, 2017, entitled "Up and down crane informing device safety system", and the technical solution described in the Chinese utility model patent with the application number 201720751858.0 and the application date of June 27, 2017, entitled "Crane up and down crane informing device".

[0005] However, the problem of the informing system based on the controller and various communication protocols and bus technologies including the above technical solutions is that the field wiring is relatively complicated, and the reason is that at least four wires are needed to connect between the host and each extension, that is, two power lines and two communication lines. There are often several boarding ports on the overhead crane, which causes the informing system to have a problem of too many wire harnesses when wiring, thereby increasing the difficulty of wiring. Practical new type content

[0006] The technical problem solved by the utility model is to overcome the shortcomings of the prior art, provide a two-wire connection mode between the cab host and each extension, greatly reducing the complexity of wiring between the cab host and the extension and the number of wire harnesses on the overhead crane.

[0007] The technical scheme adopted by the utility model to solve its technical problem is that the overhead crane informing system comprises a cab host arranged in a cab, and an extension is arranged at each boarding port, the cab host is connected with each extension, and the cab host and each extension are connected through a two-wire connection mode.

[0008] Preferably, the cab host and each extension are connected through a POWERBUS bus communication module or an M-BUS bus communication module.

[0009] Preferably, the cab host comprises a host controller, and a touch screen and a host communication module for connecting with the extension are respectively connected to the input and output ports of the host controller.

[0010] Preferably, an alarm is connected to the signal output end of the host controller.

[0011] Preferably, the extension comprises a get-off informing extension arranged in a safety door and a get-on informing extension arranged outside the safety door.

[0012] Preferably, the get-on informing extension comprises a get-on extension controller, a get-on extension communication module for connecting with the cab host is connected to the input and output ports of the get-on extension controller, and a get-on request button and a get-off confirmation button are connected to the signal input end of the get-on extension controller.

[0013] Preferably, a display screen for displaying interactive information is further connected to the signal output end of the get-on extension controller.

[0014] Preferably, the get-off informing extension comprises a get-off extension controller, a get-off extension communication module for connecting with the cab host is connected to the input and output ports of the get-off extension controller, and a get-off request button and a get-on confirmation button are further connected to the signal input end of the get-off extension controller.

[0015] Preferably, an opening / closing detection switch is also provided for detecting the opening / closing status of the safety door, and the opening / closing detection switch is connected to the signal input terminal of the disembarkation sub-controller.

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

[0017] In this overhead crane boarding and alighting notification system, the main unit in the cab is connected to each sub-unit via a two-wire connection. The two wires connecting the main unit and the sub-unit simultaneously enable the main unit to supply power to the sub-unit and transmit data with the sub-unit, thus greatly reducing the complexity of the wiring and the number of wire harnesses between the main unit and the sub-unit.

[0018] A display screen is installed at the safety gate to show the status of boarding and alighting requests.

[0019] The main unit in the cab communicates with the sub-units via a POWERBUS bus communication module or an M-BUS bus communication module, which also facilitates the cascading of each sub-unit. Attached Figure Description

[0020] Figure 1 This is a block diagram illustrating the principle of the overhead crane loading / unloading notification system.

[0021] Figure 2 This is a block diagram illustrating the connection principle between the main unit and the sub-unit of the overhead crane alighting / arrival notification system in the driver's cab.

[0022] Figure 3 This is a block diagram illustrating the operating principle of the main unit in the cab of the overhead crane's boarding / alighting notification system.

[0023] Figure 4 This is a block diagram illustrating the working principle of the last notification extension unit for the overhead crane loading / unloading notification system.

[0024] Figure 5 This is a block diagram illustrating the working principle of the overhead crane alighting / receiving notification system's next notification extension. Detailed Implementation

[0025] Figures 1-5 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-5 The present invention will be further described below.

[0026] like Figure 1 As shown, a crane boarding / alighting notification system includes a main unit located in the crane's cab, and a secondary unit installed at each boarding gate. Based on the number of boarding gates, secondary units are sequentially arranged on the crane as a first secondary unit, a second secondary unit, ..., an Nth secondary unit. The main unit in the cab is connected to the first secondary unit, the second secondary unit, ..., the Nth secondary unit, respectively.

[0027] In combination Figure 2 Each of the sub-controllers includes an onboarding sub-controller and an offboarding sub-controller, and the cab main-controller is connected to the onboarding sub-controller and the offboarding sub-controller in each of the sub-controllers. The onboarding sub-controller is located outside the security door of the boarding gate, and the offboarding sub-controller is located inside the security door of the boarding gate. In the onboarding and offboarding system of the vehicle, the connection between the cab main-controller and each of the sub-controllers is achieved in the form of a POWERBUS bus or an M-BUS bus known in the art, so that two wires are led from the cab main-controller, and thus the power supply of the sub-controllers by the cab main-controller and the communication between the cab main-controller and the sub-controllers are achieved, thereby greatly reducing the complexity of wiring and the number of wire harnesses between the cab main-controller and the sub-controllers.

[0028] When a staff member needs to board, the staff member sends a boarding request to the cab main-controller through the onboarding sub-controller at the corresponding boarding gate, and after obtaining the permission of the cab, the staff member enters through the security door at the boarding gate, completes the boarding, and after entering the security door, the staff member sends a confirmation signal to the cab through the offboarding sub-controller inside the security door, so that the driver in the cab continues the corresponding driving operation. When a staff member needs to offboard, the staff member sends an offboarding request to the cab main-controller through the offboarding sub-controller inside the security door, and after obtaining the permission of the cab, the staff member completes the boarding through the corresponding boarding gate of the security door, and after offboarding, the staff member sends a confirmation signal to the cab through the onboarding sub-controller inside the security door, so that the driver in the cab continues the corresponding driving operation.

[0029] As shown in Figure 3 The cab main-controller includes a main-controller, an alarm connected to the signal output end of the main-controller, and a touch screen and a main-communication module connected to the input / output port of the main-controller, wherein the main-communication module is a POWERBUS bus communication module (or an M-BUS bus communication module) as described above. An alarm is also connected to the output end of the main-controller.

[0030] As shown in Figure 4 The onboarding sub-controller includes an onboarding sub-controller, an onboarding sub-controller communication module connected to the input / output port of the onboarding sub-controller, and the onboarding sub-controller communication module is a POWERBUS bus communication module (or an M-BUS bus communication module) as described above, and the communication between the onboarding sub-controller and the main-communication module in the cab main-controller is achieved through the onboarding sub-controller communication module, and the power supply of the onboarding sub-controller by the cab main-controller is also achieved. An onboarding request button and an offboarding confirmation button are also connected to the signal input end of the onboarding sub-controller.

[0031] As shown in Figure 5As shown, the disembarkation notification unit includes a disembarkation unit controller. A disembarkation unit communication module is connected to the input / output ports of the disembarkation unit controller. This communication module uses the aforementioned POWERBUS bus communication module (or M-BUS bus communication module) and communicates with the main unit communication module in the cab through this module. It also provides power to the disembarkation notification unit from the cab main unit. Disembarkation request buttons and boarding confirmation buttons are also connected to the signal input terminals of the disembarkation unit controller. In accordance with industry safety operation requirements, each safety door is equipped with a door opening / closing detection switch, such as a limit switch. This switch detects the opening / closing status of the safety door. If a door is opened without authorization in any state, the crane controller will stop the crane. The door opening / closing detection switch is connected to the signal input terminal of the disembarkation unit controller. A display screen is also connected to the signal output terminal of the disembarkation unit controller for displaying interactive information.

[0032] The specific working process and working principle are as follows:

[0033] When staff need to board the vehicle, they press the boarding request button on the boarding notification extension at the corresponding boarding gate. After the boarding request button is pressed, the switch status of the corresponding port of the boarding extension controller changes, and the boarding extension controller sends the boarding request information to the main unit in the driver's cab through the boarding extension communication module.

[0034] After receiving a boarding request from the driver's cab unit, the main controller's communication module displays the request on the touchscreen based on the network address of the requesting unit, and simultaneously activates the alarm. Upon receiving the boarding request, the driver confirms or rejects it via the touchscreen. After confirmation, the confirmation information is returned to the corresponding alighting unit's communication module via the main controller, and further sent to the corresponding alighting unit controller. The alighting unit controller then changes the information on its display screen, such as changing it to "Boarding Agreed." The operator then manually opens the safety door and enters the vehicle. After boarding, they press the boarding confirmation button on the requesting unit. The corresponding port on the alighting unit controller changes its status, and the alighting unit controller sends the boarding confirmation information to the driver's cab unit via the alighting unit's communication module. Upon receiving the boarding confirmation, the driver confirms it via the touchscreen and then continues driving.

[0035] When staff need to get off the vehicle, they press the "Get off" request button on the vehicle disembarkation intercom. After pressing the "Get on" request button, the switch status of the corresponding port of the vehicle disembarkation intercom controller changes, and the vehicle disembarkation intercom controller sends the vehicle disembarkation request information to the main unit in the driver's cab through the vehicle disembarkation intercom communication module.

[0036] After receiving the request of getting off from the extension, the host communication module in the host of the cab displays the network address of the extension on the touch screen and controls the alarm to alarm according to the request of getting off. After receiving the request of getting off, the driver confirms or refuses the request of getting off through the touch screen. After confirming the request of getting off, the confirmation information is returned to the corresponding extension communication module through the host communication module and is further sent to the corresponding extension controller, at this time, the extension controller controls the information on the display screen to change, such as changing to "agree to get off". At this time, the staff manually opens the safety door and enters the door, completes getting off, and after completing getting off, presses the confirmation button of getting off on the extension. The on-off value of the corresponding port of the extension controller changes, the extension controller sends the confirmation information of getting off to the host of the cab through the extension communication module, and after receiving the confirmation information of getting off, the driver confirms the information of getting off through the touch screen, and then continues to drive.

[0037] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to obtain equivalent embodiments. However, any simple modification, equivalent change and modification of the above embodiments without departing from the technical scheme of the present application, according to the technical essence of the present application, still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A system for informing the boarding and alighting of a crown block, comprising a driver's cabin host set in a driver's cabin, and a branch set at each boarding gate, the driver's cabin host being connected to each branch, characterized in that: The main machine of the cab is connected with each extension through a two-wire connection mode.

2. The crown hoisting conveyance notification system of claim 1, wherein: The main machine of the cab is connected with each extension through a POWERBUS bus communication module or a M-BUS bus communication module.

3. The headframe embark / disembark notification system of claim 1 or 2, wherein: The main machine of the cab comprises a main machine controller, and a touch screen and a main machine communication module for connecting with the extension are further connected to input and output ports of the main machine controller.

4. The crown hoisting conveyance notification system of claim 3, wherein: An alarm is connected to a signal output end of the main machine controller.

5. The crown hoist embark / disembark notification system of claim 1, wherein: The extension comprises a getting-off informing extension arranged in the safety door and a getting-on informing extension arranged outside the safety door.

6. The crown hoisting conveyance notification system of claim 5, wherein: The getting-on informing extension comprises a getting-on extension controller, a getting-on extension communication module for connecting with the main machine of the cab is connected to an input and output port of the getting-on extension controller, and a getting-on request button and a getting-off confirmation button are connected to a signal input end of the getting-on extension controller.

7. The crown hoisting conveyance notification system of claim 6, wherein: A display screen for displaying interactive information is further connected to a signal output end of the getting-on extension controller.

8. The crown hoist on / off signaling system of claim 5, wherein: The getting-off informing extension comprises a getting-off extension controller, a getting-off extension communication module for connecting with the main machine of the cab is connected to an input and output port of the getting-off extension controller, and a getting-off request button and a getting-on confirmation button are further connected to a signal input end of the getting-off extension controller.

9. The crown hoist on / off signaling system of claim 8, wherein: A door opening detection switch for detecting an opening and closing state of the safety door is further arranged, and the door opening detection switch is connected to a signal input end of the getting-off extension controller.

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