Elevator safety system and elevator

Abstract

The elevator safety system comprises a car roof node, a car roof control module, a door machine control module, a safety control module and an elevator main control module, and the car roof control module is in communication connection with the car roof node; the door machine control module is in communication connection with the car roof node; the safety control module is in communication connection with the car roof node, and the car roof node is used for collecting information of the car roof control module and the door machine control module into comprehensive information and sending the comprehensive information to the safety control module; the elevator master control module is in communication connection with the safety control module, the safety control module is used for transmitting the comprehensive information to the elevator master control module, and the elevator master control module controls operation of an elevator according to the comprehensive information. The car roof control module and the door machine control module are both in communication connection with the car roof node, the car roof node integrates all information and then transmits the information to the safety control module, the integration degree of the car roof is high, and the car and the safety control module can communicate only through a single group of accompanying cables.

Description

Technical Field

[0001] The present application relates to the technical field of elevator control, and in particular to an elevator safety system and an elevator. Background Art

[0002] In related technologies, the car top of an elevator usually adopts distributed control. The car top, door machine, air conditioner, etc. all perform related functions by their own boards. The car top control board, door machine control board, air conditioner control board, etc. are connected to the machine room through separate cables, and the wiring is relatively complicated. Summary of the invention

[0003] The embodiments of the present application provide an elevator safety system and an elevator. The elevator safety system adopts an integrated car top architecture to reduce the complexity of the car top.

[0004] In the first aspect, an embodiment of the present application provides an elevator safety system, which includes a car top node, a car top control module, a door machine control module, a safety control module and an elevator main control module, the car top control module is communicatively connected to the car top node; the door machine control module is communicatively connected to the car top node; the safety control module is communicatively connected to the car top node, the car top node is used to collect information from the car top control module and the door machine control module into comprehensive information, and send the comprehensive information to the safety control module; the elevator main control module is communicatively connected to the safety control module, the safety control module is used to transmit the comprehensive information to the elevator main control module, and the elevator main control module controls the elevator operation according to the comprehensive information.

[0005] In some exemplary embodiments, the elevator safety system further includes a peripheral module, which is communicatively connected to the car top node, and the car top node is used to aggregate information of the car top control module, the door machine control module and the peripheral module into the comprehensive information.

[0006] In some exemplary embodiments, the peripheral module includes at least one of an air conditioning unit, a skylight unit, a fan unit, a voice announcement unit, a car display unit, and a weighing unit.

[0007] In some exemplary embodiments, the car top control module and the door machine control module are integrated into the same circuit board or control box.

[0008] In some exemplary embodiments, the elevator safety system also includes an absolute position module, which is communicatively connected to the car top node, and the car top node is used to aggregate information from the car top control module, the door machine control module and the absolute position module into the comprehensive information.

[0009] In some exemplary embodiments, the elevator safety system also includes a car safety module, which is communicatively connected to the car top node, and the car top node is used to aggregate information from the car top control module, the door machine control module, the absolute position module and the car safety module into the comprehensive information.

[0010] In some exemplary embodiments, the safety control module outputs a safety signal according to the comprehensive information, and the elevator main control module controls the operation of the elevator according to the comprehensive information and the safety signal.

[0011] In some exemplary embodiments, the elevator safety system further includes a first serial bus, wherein the first serial bus connects the car top node and the safety control module.

[0012] In some exemplary embodiments, the information type sent by the car top control module and the door machine control module is non-safety information, the information type sent by the absolute position module and the car safety module is safety information, and the first serial bus is used to transmit the safety information and the non-safety information.

[0013] In some exemplary embodiments, the elevator safety system satisfies at least one of the following:

[0014] (1) The elevator safety system further includes a second serial bus, wherein the second serial bus is connected between the absolute position module and the car top node;

[0015] (2) The elevator safety system further includes a third serial bus connected between the safety control module and the elevator main control module;

[0016] (3) The elevator safety system further includes a fourth serial bus connected between the car top control module and the car top node;

[0017] (4) The elevator safety system also includes a fifth serial bus connected between the door machine control module and the car top node.

[0018] In some exemplary embodiments, the elevator safety system also includes: a sixth serial bus, one end of which is connected to the safety control module and the other end of which has multiple branches; a pit safety node, which is connected to one of the branches; and at least one floor door control node, which is connected one-to-one with the other branches.

[0019] In some exemplary embodiments, the elevator safety system satisfies at least one of the following:

[0020] (1) The elevator safety system further includes a rooftop safety module, which is communicatively connected to the safety control module;

[0021] (2) The elevator safety system further includes a pit safety module, and the pit safety module is communicatively connected to the pit safety node;

[0022] (3) The elevator safety system further includes at least one floor door safety module, and all the floor door safety modules correspond one-to-one to all the floor door control nodes and are communicatively connected.

[0023] In a second aspect, an embodiment of the present application provides an elevator, which includes an elevator safety system.

[0024] Beneficial effect: In the embodiment of the present application, the car top control module and the door machine control module are both connected to the car top node for communication. The car top control module and the door machine control module first transmit their respective information to the car top node, and the car top node integrates all the information and transmits it to the safety control module. Only a single set of accompanying cables is required between the car and the safety control module for communication, thereby saving cables between the car and the safety control module. In addition, the car top control module and the door machine control module are both connected to the car top node for communication, which can also make the car top more integrated, thereby reducing the complexity of the car top installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A block diagram of an elevator safety system in one embodiment of the present application;

[0027] Figure 2 Schematic diagram of a block diagram of an elevator safety system in another embodiment of the present application;

[0028] Figure 3 Schematic diagram of a block diagram of an elevator safety system in another embodiment of the present application;

[0029] Figure 4 This is a block diagram of an elevator safety system in another embodiment of the present application;

[0030] Figure 5 This is a block diagram of an elevator in one embodiment of the present application.

[0031] Explanation of the accompanying drawings: 100, elevator safety system; 110, car top node; 120, car top control module; 130, door machine control module; 140, safety control module; 150, elevator master control module; 160, peripheral module; 171, first serial bus; 172, second serial bus; 173, third serial bus; 174, fourth serial bus; 175, fifth serial bus; 176, sixth serial bus; 210, absolute position module; 220, car safety module; 230, pit safety node; 240, roof safety module; 250, pit safety module; 260, floor door safety module; 270, floor door control node; 300, elevator. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0033] like Figure 1 As shown, an embodiment of the present application provides an elevator safety system 100 , which includes a car top node 110 , a car top control module 120 , a door machine control module 130 , a safety control module 140 and an elevator main control module 150 .

[0034] The car top control module 120 is responsible for the control logic inside the car, such as receiving and executing operation instructions, monitoring the car status, etc.

[0035] The door machine control module 130 is used to control the opening and closing of the car door. When it receives the car door opening and closing signals, the door machine control module 130 controls the door opening motor, and the door opening motor drives the car door to close or open the door. Optionally, when the closing force is greater than a preset value, the door opening motor automatically stops closing the door and opens the door in the opposite direction, which plays a certain degree of door closing protection role to prevent users from being pinched.

[0036] The car top node 110 is used for signal integration and transmission, and the car top node 110 is usually set on the top of the car. The car top control module 120 and the door machine control module 130 are both connected to the car top node 110 for communication, and the car top node 110 is connected to the safety control module 140 for communication. The car top node 110 is used to collect the information of the car top control module 120 and the door machine control module 130 into comprehensive information, and send the comprehensive information to the safety control module 140. The safety module has the function of data transmission and can transmit the comprehensive information to the elevator main control module 150.

[0037] The elevator main control module 150 is connected to the safety control module 140 for communication, and the elevator main control module 150 controls the elevator operation according to the comprehensive information. Exemplarily, the elevator main control module 150 controls the rotation of the traction machine, thereby controlling the up and down movement of the car, or the elevator main control module 150 sends a car door opening and closing signal, and the car door opening and closing signal is transmitted to the door machine control module 130 via the safety control module 140 and the car top node 110, and the door machine control module 130 controls the opening or closing of the car door. The elevator main control module 150 and the safety control module 140 are usually arranged in the machine room, which is located on the roof, and the car top node 110 moves up and down with the car, so a longer accompanying cable is required between the car and the safety control module 140.

[0038] In the embodiment of the present application, the car top control module 120 and the door machine control module 130 are both connected to the car top node 110 for communication. The car top control module 120 and the door machine control module 130 first transmit their respective information to the car top node 110, and the car top node 110 integrates all the information and transmits it to the safety control module 140. Only a single set of accompanying cables is required between the car and the safety control module 140 to communicate multiple signals, thereby saving cables between the car and the safety control module 140. In addition, the car top control module 120 and the door machine control module 130 are both connected to the car top node 110 for communication, which can also make the car top more integrated, thereby reducing the complexity of the car top installation.

[0039] Optionally, the car-top node 110 may be connected to more modules, and information of the more modules may be integrated by the car-top node 110 and sent to the safety control module 140 .

[0040] like Figure 1 As shown, in some exemplary embodiments, the elevator safety system 100 further includes a peripheral module 160, which can provide relatively rich elevator functions. The peripheral module 160 is communicatively connected with the car top node 110, and the peripheral module 160 can be communicatively connected with the car top node 110 through an I / O (Input / Output) interface.

[0041] The car top node 110 is used to collect information from the car top control module 120, the door machine control module 130 and the peripheral module 160 into comprehensive information, thereby further improving the integration of the car top, so that the car can be installed more conveniently while having more functions. The information of the peripheral module 160 can be sent to the elevator main control module 150 through the car top node 110, and the elevator main control module 150 can also send information to the peripheral module 160 through the car top node 110 to control the peripheral module 160. It should be noted that the peripheral module 160 does not need to communicate with the elevator main control module 150, but a control button is set in the car so that the user can operate in the car.

[0042] In some exemplary embodiments, the peripheral module 160 includes at least one of an air conditioning unit, a skylight unit, a fan unit, a voice announcement unit, a car display unit, and a weighing unit.

[0043] The air conditioning unit is used to adjust the temperature in the car so that the user is more comfortable in the car. For example, the air conditioning unit can be connected to the elevator main control module 150 for communication so as to turn on the air conditioning remotely, or the air conditioning unit can be connected to the elevator main control module 150 for communication and only set a switch in the car.

[0044] The canopy unit is used to illuminate the car. It has a good uniform light effect, making the light distribution inside the car more uniform and reducing the shadow area. This not only helps passengers to clearly see the interior environment and operation panel of the car, but also reduces the risk of falling and collision to a certain extent, thereby improving the safety and comfort of passengers.

[0045] Moreover, appropriate lighting can create a warm and comfortable riding environment and a good atmosphere, which can relieve the user's claustrophobic feeling when riding the elevator and enhance the user's experience. The canopy unit can communicate with the elevator main control module 150 to facilitate remote switching, thereby preventing the user from accidentally closing the canopy unit.

[0046] The fan unit helps improve air quality by promoting air circulation. A good ventilation system can ensure fresh air in the elevator and reduce the accumulation of odors and pollutants, thereby improving the passenger experience in the elevator. In addition, suitable temperature and humidity are important for improving passenger comfort. The fan unit and air conditioning unit in the elevator work together to maintain constant temperature and humidity to avoid discomfort caused by temperature differences and humidity changes.

[0047] Secondly, the fan unit in the elevator helps to expel dirty air and bring in fresh air by promoting air flow, thereby improving air cleanliness. At the same time, by adjusting the ratio of the air volume of the air conditioner in the machine room to the volume of the machine room, the humidity is kept constant, further improving the air quality inside the elevator.

[0048] Finally, the fan unit in the elevator can also improve the passenger experience by increasing the air circulation rate in the car, especially in ultra-high-speed elevators, to avoid dizziness. These benefits together ensure a comfortable and healthy environment inside the elevator, providing passengers with a more pleasant and safer riding experience.

[0049] The voice announcement unit can broadcast the current floor number of the elevator and the door opening and closing prompts, and help passengers prepare by reminding them of the floor the elevator is about to arrive at, thereby enhancing the safety of riding. It is especially friendly to illiterate users or users with poor eyesight, and the language type of the announcement can be set according to actual needs.

[0050] The car display unit can display the current floor and running direction of the elevator, so that users can check it at any time. In emergency situations, such as elevator failure or emergency rescue, passengers and rescuers can quickly and accurately know the current floor of the elevator, thereby speeding up rescue and reducing potential risks.

[0051] The weighing unit can monitor the load situation in the elevator in real time. Once overloaded, the elevator will automatically stop running and sound an alarm, which helps to avoid safety risks caused by overloading and ensures that the elevator operates safely within the specified load range.

[0052] Of course, the peripheral module 160 may also include more functional units, which is not limited here.

[0053] In some exemplary embodiments, the car top control module 120 and the door machine control module 130 are integrated into the same circuit board, so that the car top control module 120 and the door machine control module 130 have a higher degree of integration, reduce manufacturing costs, reduce the occupancy of the car space, and are more convenient during assembly.

[0054] Alternatively, the car top control module 120 and the door machine control module 130 are integrated into the same control box, that is, the car top control module 120 and the door machine control module 130 are located on different circuit boards, but are located in the same electrical control box, so that the car top control module 120 and the door machine control module 130 have a certain degree of integration, and it is convenient to replace the car top control module 120 or the door machine control module 130 separately.

[0055] like Figure 2 As shown, in some exemplary embodiments, the elevator safety system 100 further includes an absolute position module 210, which is in communication connection with the car top node 110, and the car top node 110 is used to collect information of the car top control module 120, the door machine control module 130 and the absolute position module 210 into comprehensive information, thereby further improving the integration of the car top. The safety control module 140 obtains the real-time position and speed value of the car through the absolute position module 210, which is not affected by the stretching and shaking of the wire rope and the relative slip between the wire rope and the traction machine wheel groove, and can accurately obtain the position and speed of the car.

[0056] The absolute position module 210 detects and records the running position of the elevator car in real time through a high-precision position sensor. Even after a power outage or system restart, the correct position information can be quickly found, avoiding the problem of inaccurate positioning due to error accumulation. It not only avoids accidents caused by incorrect position judgment and ensures the safety of passengers, but also shortens the startup time and improves operating efficiency.

[0057] The absolute position module 210 can monitor the operating status of the car in real time and provide accurate data support for the elevator control system, so as to activate the protection device in time to prevent the elevator from overspeeding or terminal overspeeding, thereby enhancing the safety of the elevator. The absolute position module 210 helps to realize the personalized customization of the elevator by providing high-precision position control, so that the elevator can better meet different scenarios and needs, such as barrier-free elevators, sightseeing elevators, etc., thereby improving the passenger riding experience. At the same time, the absolute position module 210 can provide accurate operating data, which is helpful for elevator energy-saving optimization and energy management, such as adjusting the motor power according to the actual load of the car to achieve more reasonable energy consumption.

[0058] Optionally, the absolute position module 210 includes an information strip and a sensor. The information strip runs through the entire elevator shaft. Corresponding height information is set at different height positions of the information strip. The sensor is set in the car and moves up and down with the car. The sensor can read the height information of the magnetic strip, thereby obtaining the current position of the car based on the height information.

[0059] Optionally, a magnetic strip is set every 10 cm along the height direction of the information strip, and the corresponding height information is stored in different magnetic strips. When the sensor passes through the magnetic strip, the information in the magnetic strip can be read to obtain the actual height of the car. Moreover, the time difference between reading two adjacent magnetic strips can be obtained by calculation, and the movement speed of the car can be obtained based on the time difference, so as to detect whether the car is speeding. It can be understood that the denser the intervals between the magnetic strips, the more accurate the height information and speed information of the car can be obtained.

[0060] like Figure 2 As shown, in some exemplary embodiments, the elevator safety system 100 further includes a car safety module 220, which is communicatively connected to the car top node 110, and the car top node 110 is used to collect information of the car top control module 120, the door machine control module 130, the absolute position module 210 and the car safety module 220 into comprehensive information, thereby further improving the integration of the car top. In this embodiment, the modules that need to communicate in the car can basically communicate with the outside through the car top node 110, thereby saving communication cables and connection terminals.

[0061] The car safety module 220 illustratively includes a door lock bypass device, a top limit switch, a car door locking switch, a car door in-position contact, an escape door, a car top emergency stop switch, a limit switch, an auxiliary emergency stop switch, a car locking switch, a safety window or a safety clamp, etc.

[0062] The safety control module 140 has certain data processing functions. The safety control module 140 outputs a safety signal based on the comprehensive information to share the processing pressure of the elevator main control module 150. The safety module also has a data transmission function and can transmit the comprehensive information to the elevator main control module 150. The elevator main control module 150 controls the elevator operation based on the comprehensive information and the safety signal.

[0063] The safety control module 140 is used to detect the safety state of the elevator. Exemplarily, the elevator safety system 100 has a safety circuit, which includes multiple safety switches connected in series. The safety control module 140 controls the on and off of the multiple safety switches. When the safety control module 140 detects that the elevator is in a safe state, the safety control module 140 controls the multiple safety switches to close, and the safety circuit sends a safety signal. After the elevator main control module 150 receives the safety signal, it controls the traction machine power supply and the brake power supply to be turned on, thereby controlling the normal operation of the elevator. When the safety control module 140 detects that the elevator is in an unsafe state, the safety control module 140 controls at least one safety switch to be disconnected, the safety circuit stops sending a safety signal, and the elevator main control module 150 does not receive a safety signal, and cuts off the traction machine power supply and the brake power supply, thereby controlling the elevator to stop running. Optionally, when the car safety module 220 fails, the safety control module 140 controls the safety circuit to be disconnected.

[0064] like Figure 2 As shown, in some exemplary embodiments, the elevator safety system 100 also includes a first serial bus 171, and the first serial bus 171 connects the car top node 110 and the safety control module 140. The first serial bus 171 can be a safety bus such as CAN / 485, or a bus of other private protocols, which is not limited here. Compared with the point-to-point connection method, the first serial bus 171 communication makes wiring simpler, reduces the number of well cables, makes installation and wiring simpler and more convenient, and helps to reduce potential failures caused by complex wiring or maintenance difficulties. This not only reduces the number of fault points, but also makes maintenance easier, improves the reliability of the elevator safety system 100, and improves the overall availability and safety of the elevator. When a safety circuit fails, it is also easier to find the fault.

[0065] By adopting serial bus communication, the elevator safety system 100 can reduce the input and output points of the PLC process controller, thereby improving the reliability of the elevator safety system 100. This communication method makes it possible to standardize the control cabinet. Even if the number of elevator landing stations increases, the number of PLC points in the control cabinet can remain unchanged, further enhancing the stability of the elevator safety system 100.

[0066] Serial bus communication technology makes the control system more flexible and can adjust the elevator operation strategy according to actual needs. For example, the elevator operation mode can be intelligently adjusted according to passenger flow, thereby improving operation efficiency and passenger experience.

[0067] In some exemplary embodiments, the type of information sent by the car top control module 120, the door machine control module 130 and the peripheral module 160 is non-safety information, that is, the information of the car top control module 120, the door machine control module 130 and the peripheral module 160 will not affect the safe operation of the elevator.

[0068] The information type sent by the absolute position module 210 and the car safety module 220 is safety information, that is, the information of the absolute position module 210 and the car safety module 220 may affect the safe operation of the elevator. The safety control module 140 may output a safety signal based on the information sent by the absolute position module 210 and the car safety module 220.

[0069] The first serial bus 171 is used to transmit safety information and non-safety information, so that the utilization rate of the first serial bus 171 is higher and more signal types are transmitted.

[0070] like Figure 3 As shown, in some exemplary embodiments, the elevator safety system 100 further includes a second serial bus 172, which is connected between the absolute position module 210 and the car top node 110. The second serial bus 172 communication makes the wiring simpler, reduces the number of hoistway cables, makes installation and wiring simpler and more convenient, and helps to reduce potential failures caused by complex wiring or maintenance difficulties, which not only reduces the number of failure points, but also makes maintenance easier, improves the reliability of the entire control system, and improves the overall availability and safety of the elevator.

[0071] like Figure 3As shown, in some exemplary embodiments, the elevator safety system 100 further includes a third serial bus 173, and the third serial bus 173 is connected between the safety control module 140 and the elevator main control module 150. The third serial bus 173 communication makes the wiring simpler, reduces the number of hoistway cables, makes the installation and wiring simpler and more convenient, and helps to reduce potential failures caused by complex wiring or maintenance difficulties, which not only reduces the number of failure points, but also makes maintenance easier, improves the reliability of the entire control system, and improves the overall availability and safety of the elevator.

[0072] like Figure 3 As shown, in some exemplary embodiments, the elevator safety system 100 further includes a fourth serial bus 174, which is connected between the car top control module 120 and the car top node 110. The fourth serial bus 174 communication makes the wiring simpler, reduces the number of hoistway cables, makes installation and wiring simpler and more convenient, and helps to reduce potential failures caused by complex wiring or maintenance difficulties, which not only reduces the number of failure points, but also makes maintenance easier, improves the reliability of the entire control system, and improves the overall availability and safety of the elevator.

[0073] like Figure 3 As shown, in some exemplary embodiments, the elevator safety system 100 further includes a fifth serial bus 175, which is connected between the door machine control module 130 and the car top node 110. The fifth serial bus 175 communication makes the wiring simpler, reduces the number of hoistway cables, makes installation and wiring simpler and more convenient, and helps to reduce potential failures caused by complex wiring or maintenance difficulties, which not only reduces the number of failure points, but also makes maintenance easier, improves the reliability of the entire control system, and improves the overall availability and safety of the elevator.

[0074] like Figure 3 As shown, in some exemplary embodiments, the elevator safety system 100 further includes a sixth serial bus 176, a pit safety node 230 and at least one landing door control node 270, one end of the sixth serial bus 176 is connected to the safety control module 140, and the other end of the sixth serial bus 176 has multiple branches, the pit safety node 230 is connected to one of the branches, and at least one landing door control node 270 is connected to the other branches in a one-to-one correspondence. The number of landing door control nodes 270 can be configured according to the number of floors on which the elevator operates, for example, one landing door control node 270 can be set for every four floors.

[0075] The sixth serial bus 176 runs through the entire elevator shaft. The sixth serial bus 176 can connect the pit safety node 230 and the floor door control node 270, thereby making the wiring simpler and the utilization rate higher.

[0076] The sixth serial bus 176 communication makes wiring simpler, reduces the number of shaft cables, makes installation and wiring simpler and more convenient, and helps reduce potential failures caused by complex wiring or difficult maintenance. This not only reduces the number of failure points, but also makes maintenance easier, improves the reliability of the entire control system, and improves the overall availability and safety of the elevator.

[0077] like Figure 4 As shown, in some exemplary embodiments, the elevator safety system 100 further includes a rooftop safety module 240, which is communicatively connected to the safety control module 140. The rooftop safety module 240 may be communicatively connected to the safety control module 140 through an I / O interface. The rooftop safety module 240 exemplarily includes an electrical safety switch for a speed limiter, a limit switch, an emergency stop switch for a control cabinet, an auxiliary emergency stop switch, a handwheel switch for a turning gear, a rope clamp switch, a traction machine protective cover switch, and the like.

[0078] like Figure 4 As shown, in some exemplary embodiments, the elevator safety system 100 further includes a pit safety module 250, which is communicatively connected to the pit safety node 230. The pit safety module 250 may be communicatively connected to the pit safety node 230 through an I / O interface. The pit safety module 250 exemplarily includes a buffer electrical safety switch, a limit switch, an auxiliary emergency stop switch, a pit door switch, a pit ladder switch, a speed limiter tensioner switch, an absolute position magnetic strip tensioner switch, a pit platform switch, and the like.

[0079] like Figure 4 As shown, in some exemplary embodiments, the elevator safety system 100 further includes at least one landing door safety module 260, all landing door safety modules 260 correspond to all landing door control nodes 270 one by one and are communicatively connected, and the landing door safety modules 260 can be communicatively connected to the landing door control nodes 270 through an I / O interface. The landing door safety module 260 exemplarily includes a landing door locking switch, a landing door in-position contact, a safety door, etc. The signals sent by the roof safety module 240, the pit safety module 250 and the landing door safety module 260 are safety signals.

[0080] like Figure 5 As shown, an embodiment of the present application provides an elevator 300 , and the elevator 300 includes an elevator safety system 100 .

[0081] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0082] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An elevator safety system, It is characterized in that include: Car top node; A car top control module, communicatively connected with the car top node; A door machine control module, which is in communication connection with the car top node; A safety control module is communicatively connected with the car top node, and the car top node is used to collect information of the car top control module and the door machine control module into comprehensive information, and send the comprehensive information to the safety control module; The elevator main control module is in communication connection with the safety control module, and the safety control module is used to transmit the comprehensive information to the elevator main control module, and the elevator main control module controls the elevator operation according to the comprehensive information.

2. The elevator safety system according to claim 1, It is characterized in that The elevator safety system also includes a peripheral module, which is communicatively connected to the car top node, and the car top node is used to collect information from the car top control module, the door machine control module and the peripheral module into the comprehensive information.

3. The elevator safety system according to claim 2, It is characterized in that The peripheral module includes at least one of an air conditioning unit, a skylight unit, a fan unit, a voice station announcement unit, a car display unit, and a weighing unit.

4. The elevator safety system according to claim 1, It is characterized in that The car top control module and the door machine control module are integrated into the same circuit board or control box.

5. The elevator safety system according to claim 1, It is characterized in that The elevator safety system also includes an absolute position module, which is communicatively connected to the car top node, and the car top node is used to collect information from the car top control module, the door machine control module and the absolute position module into the comprehensive information.

6. The elevator safety system according to claim 5, It is characterized in that The elevator safety system also includes a car safety module, which is communicatively connected to the car top node. The car top node is used to collect information from the car top control module, the door machine control module, the absolute position module and the car safety module into the comprehensive information.

7. The elevator safety system according to claim 5, It is characterized in that The safety control module outputs a safety signal according to the comprehensive information, and the elevator main control module controls the elevator operation according to the comprehensive information and the safety signal.

8. The elevator safety system according to claim 6, It is characterized in that The elevator safety system further includes a first serial bus, which connects the car top node and the safety control module.

9. The elevator safety system according to claim 8, It is characterized in that The information sent by the car top control module and the door machine control module is non-safety information, the information sent by the absolute position module and the car safety module is safety information, and the first serial bus is used to transmit the safety information and the non-safety information.

10. The elevator safety system according to claim 5, It is characterized in that The elevator safety system meets at least one of the following requirements: (1) The elevator safety system further includes a second serial bus, wherein the second serial bus is connected between the absolute position module and the car top node; (2) The elevator safety system further includes a third serial bus, wherein the third serial bus is connected between the safety control module and the elevator main control module; (3) The elevator safety system further includes a fourth serial bus, wherein the fourth serial bus is connected between the car top control module and the car top node; (4) The elevator safety system further includes a fifth serial bus, which is connected between the door machine control module and the car top node.

11. The elevator safety system according to claim 1, It is characterized in that The elevator safety system also includes: a sixth serial bus, one end of which is connected to the safety control module, and the other end of which has a plurality of branches; a pit safety node connected to one of the branches; At least one landing door control node is connected to the other branch connections in a one-to-one correspondence.

12. The elevator safety system according to claim 11, It is characterized in that The elevator safety system meets at least one of the following requirements: (1) The elevator safety system further includes a rooftop safety module, which is communicatively connected to the safety control module; (2) The elevator safety system further includes a pit safety module, and the pit safety module is communicatively connected to the pit safety node; (3) The elevator safety system further includes at least one floor door safety module, and all the floor door safety modules correspond one-to-one to all the floor door control nodes and are communicatively connected.

13. An elevator, It is characterized in that The elevator comprises the elevator safety system according to any one of claims 1-12.

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