Safety detection device of conveying equipment

Abstract

The embodiment of the invention provides a safety detection device of conveying equipment, and relates to the technical field of safety detection. The device comprises a signal processing device and at least one sensor, wherein the sensor has a sensing range covering a plurality of steps in the conveying equipment; the sensor is used for sending detection waveform information corresponding to a plurality of steps in a sensing range to the signal processing device; and the signal processing device is used for obtaining the stair states of the plurality of stairs according to the detection waveform information. According to the safety detection device of the conveying equipment, the sensor has the induction range covering the multiple steps in the conveying equipment, the induction range area is a plane and can cover the whole step range, safety protection can be triggered immediately when the steps are abnormal, protection does not need to be carried out after the steps run to the return side, the safety monitoring range can be expanded, and the safety detection efficiency is improved. The efficiency and accuracy of safety monitoring are improved, and then the safety performance of the conveying equipment can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of safety detection, and in particular to a safety detection device for conveying equipment. Background Art

[0002] Escalators and moving walkways are collectively referred to as passenger conveying equipment. Escalators are usually used to transport passengers between different floors, and they have step-like steps; moving walkways are usually used to transport passengers on a horizontal plane or at a small angle and low lifting height, and they usually only have a flat pedal shape. The structure and working principle of escalators and moving walkways are basically the same. It is usually necessary to conduct safety inspections on the passenger conveying equipment. When an abnormality occurs in the conveying equipment, the safety protection can be triggered in time to improve the safety performance of the conveying equipment.

[0003] The current technology for detecting the sinking or missing steps of conveying equipment is mostly in the form of travel switches or proximity switches. The detection range is only a point and cannot cover the entire surface. If an abnormality occurs but the switch is not set, the fault cannot be detected. In addition, the sinking switch is set on the return side and does not protect the forward side. In the current technology, the safety detection range is not comprehensive enough, and there are problems such as low safety detection accuracy and low efficiency, which in turn leads to low safety performance of the conveying equipment. Summary of the invention

[0004] Based on this, it is necessary to provide a safety detection device for conveying equipment to address the above technical issues.

[0005] In a first aspect, the present application provides a safety detection device for a conveying device. The device comprises:

[0006] A signal processing device and at least one sensor; wherein,

[0007] The sensor has a sensing range covering a plurality of steps in the conveying device;

[0008] The sensor is used to send the detection waveform information corresponding to the plurality of steps within the sensing range to the signal processing device;

[0009] The signal processing device is used to obtain the step status of the multiple steps according to the detection waveform information, obtain the safety status of the escalator, and perform early warning reminders, fault slow stop and fault emergency stop according to the severity of the safety status.

[0010] In one embodiment, at least one of the sensors includes a step sensor; the step sensor includes a first sensor and a second sensor; the first sensor is arranged below the step forward side of the conveying device; the second sensor is arranged below the step return side of the conveying device.

[0011] In one of the embodiments, the sensing range of the step sensor is parallel to the ladder running track of the conveying equipment.

[0012] In one of the embodiments, the step sensor is used to generate the detection waveform information corresponding to the multiple steps within the sensing range; the detection waveform information includes a step signal corresponding to each of the multiple steps.

[0013] In one embodiment, if the sensing range of the step sensor is located below the multiple steps, when there is a step among the multiple steps that has sunk, the step sensor is used to generate a sinking signal for the sunken step.

[0014] In one embodiment, if the sensing range of the step sensor is located below the multiple steps, and there is no sinking of the steps among the multiple steps, the signal waveform included in the detection waveform information is a straight line; if no foreign objects enter the connection between the machine room corresponding to the conveying equipment and the stairway of the conveying equipment, and the connection between the machine room corresponding to the conveying equipment and the stairway of the conveying equipment, the signal waveform included in the detection waveform information is a straight line.

[0015] In one embodiment, if the sensing range of the step sensor covers a plurality of the steps, the step sensor is used to detect the distance between each step and the step sensor, and obtain the detection waveform information corresponding to the plurality of steps within the sensing range based on the distance.

[0016] In one of the embodiments, at least one of the sensors includes a third sensor; the third sensor is arranged at the connection between the machine room corresponding to the conveying equipment and the ladder path of the conveying equipment.

[0017] In one of the embodiments, at least one of the sensors includes a fourth sensor; the fourth sensor is arranged at the entrance of the machine room corresponding to the conveying equipment from outside.

[0018] In one of the embodiments, the signal processing device is also used to obtain the safety detection result of the conveying equipment based on the step status of the multiple steps; and obtain the safety detection result of the conveying equipment based on the sensor status of the connection between the machine room corresponding to the conveying equipment and the stairway of the conveying equipment, and the connection between the machine room corresponding to the conveying equipment and the stairway of the conveying equipment.

[0019] The safety detection device of the above-mentioned conveying equipment includes: a signal processing device and at least one sensor; wherein the sensor has a sensing range covering multiple steps in the conveying equipment; the sensor is used to send the detection waveform information corresponding to the multiple steps within the sensing range to the signal processing device; the signal processing device is used to obtain the step status of the multiple steps according to the detection waveform information. In the safety detection device of the conveying equipment provided by the embodiment of the present application, there may be at least one sensor, and the sensor has a sensing range covering multiple steps in the conveying equipment, and can sense the detection waveform information corresponding to the multiple steps within the sensing range. The detection area is a plane, which can cover the entire step range. Any abnormality in the step can immediately trigger safety protection, and there is no need to wait for the step to run to the return side for protection. The safety monitoring range can be expanded, and the efficiency and accuracy of safety monitoring and safety detection of the conveying equipment can be improved, thereby improving the safety performance of the conveying equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a safety detection device for a conveying equipment provided in an embodiment of the present application;

[0021] Figure 2 A schematic diagram of a signal waveform generated by a sensor according to an embodiment of the present application;

[0022] Figure 3 A schematic diagram of another sensor sensing and generating a signal waveform provided in an embodiment of the present application;

[0023] Figure 4 A schematic diagram of a signal waveform generated by another sensor according to an embodiment of the present application;

[0024] Figure 5 A schematic diagram of adjusting the horizontal detection distance and vertical detection distance of a sensor provided in an embodiment of the present application. DETAILED DESCRIPTION

[0025] 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.

[0026] In an exemplary embodiment, Figure 1 As shown, a safety detection device for a conveying device is provided, which may include:

[0027] A signal processing device and at least one sensor; wherein,

[0028] The sensor has a sensing range covering a plurality of steps in the conveying device;

[0029] A sensor, used for sending detection waveform information corresponding to a plurality of steps within a sensing range to a signal processing device;

[0030] The signal processing device is used to obtain the step status of multiple steps based on the detected waveform information, obtain the safety status of the escalator, and perform early warning reminders, fault slow stop and fault emergency stop according to the severity of the safety status.

[0031] The conveying equipment may be an escalator, which may include but is not limited to steps, a drive main unit, handrails, trusses, guide rail systems, safety devices, control systems, machine rooms, entrances and exits, and decorative panels. The steps may be the part where passengers stand, usually made of metal or other solid materials, and have a certain anti-slip surface to ensure the safety of passengers during the operation of the escalator. The steps are connected together by chains or other transmission devices to form a continuous circulation system, moving up and down along the track of the escalator; the steps may be composed of the following parts: pedals, kick plates, main wheels, auxiliary wheels, and step chain connecting parts. The drive main unit may provide power for the operation of the escalator, and is usually composed of an electric motor, a reducer, and a brake. The drive main unit transmits power to the steps through transmission devices such as chains or gears, so that it can run at a predetermined speed and direction. The handrails are located on both sides of the escalator and run synchronously with the steps to provide handrail support for passengers and help them maintain balance. The handrails are usually made of rubber or other soft materials, and have a certain friction on the surface to prevent passengers from slipping. The truss is the skeleton structure of the escalator, which is used to support and fix the various components of the escalator. The truss is usually made of steel or other high-strength materials, and has sufficient strength and rigidity to ensure the stability and safety of the escalator during operation. The guide rail system, including the step guide rail and the handrail guide rail, is used to guide the operation of the steps and handrails to ensure their stability and accuracy during operation. The guide rail system is usually made of metal, and the surface is specially treated to reduce friction and wear. Safety devices, in order to ensure the safe operation of the escalator, the escalator is equipped with a variety of safety devices, such as emergency brakes, step sinking protection devices, apron protection devices, etc. These safety devices can act in time when an abnormal situation occurs in the escalator to protect the lives of passengers. Control system, used to control the start, stop, running speed and direction of the escalator. The control system is usually composed of controllers, sensors and actuators, etc., which can automatically adjust the operating parameters of the escalator according to the needs of passengers and the operating status of the escalator to ensure the safe, comfortable and efficient operation of the escalator. The machine room is where the drive host, control system and other important equipment are placed, usually at the top or bottom of the escalator. The machine room needs to have good ventilation, heat dissipation and fire protection conditions to ensure the normal operation and service life of the equipment. Entrances and exits, including upper and lower entrances and exits, are where passengers enter and exit the escalator. The entrances and exits are usually equipped with comb plates, safety brushes and other devices to prevent passengers' clothes or shoes from being caught in the escalator, and also to guide passengers in and out of the escalator. Decorative panels are used to cover the external structure of the escalator, which plays a role in beauty and protection. Decorative panels are usually made of materials such as stainless steel, glass or plastic, and can be designed and selected according to different architectural styles and customer needs.

[0032] The at least one sensor may include a step sensor and a machine room sensor. The sensing range of the step sensor may be parallel to the running track of the ladder path of the conveying equipment; the sensing range of the step sensor may cover multiple steps of the conveying equipment. Figure 1 As shown, the step sensor may include a first sensor (for example, sensor 1) and a second sensor (for example, sensor 2), the first sensor being disposed below the forward side of the steps of the conveying equipment; the second sensor being disposed below the return side of the steps of the conveying equipment. The sensing range of the first sensor and the second sensor is parallel to the running track of the ladder and covers a plurality of steps or pedals. During the operation of the equipment, the steps or pedals are continuously monitored in real time to ensure that no position where an abnormality may occur is missed. The detection waveform information may include signal waveforms of the plurality of steps, and the detection waveform information includes a step signal corresponding to each step of the plurality of steps. The first sensor and the second sensor may generate signal waveforms of the plurality of steps covered by the sensing range based on sensing, which may include the following situations. In a possible implementation, the sensing range may be located below the plurality of steps and pedals, and the plurality of steps and their pedals are not within the sensing range. In this case, as Figure 2 As shown, if there is no step sinking among the multiple steps, that is, the multiple steps are in normal condition, then the signal waveforms of the multiple steps and their pedals are a straight line; if there is a sunken step among the multiple steps, in this case, the step sensor (including the first sensor and the second sensor) can sense the sunken step and generate a step signal corresponding to the sunken step. In another possible implementation, the sensing range can cover the multiple steps and pedals, that is, the multiple steps and pedals can be within the sensing range. In this case, Figure 3 As shown, if there is no missing step or misplaced step in the multiple steps, that is, the multiple steps are in normal condition, then the signal waveform of the multiple steps and their pedals is a waveform containing the step signal corresponding to each step in the multiple steps; if there is an abnormal step with missing steps or misplaced steps in the multiple steps, the step sensor (including the first sensor and the second sensor) cannot sense the abnormal step, and the step signal of the abnormal step will be missing in the signal waveform of the multiple steps and their pedals generated by the step sensor. In another possible implementation, the sensing range can cover the multiple steps and pedals, that is, the multiple steps and pedals can be in the sensing range. In this case, Figure 4As shown, the step sensor can be used to detect the distance between each step and the step sensor, and according to the distance, the detection waveform information corresponding to the multiple steps within the sensing range can be obtained. At this time, the sensor can be used to detect the distance, and the waveform is formed according to the distance of the step or pedal sensed by the sensor, combined with the shape of the step or pedal and the sensor distance. Under normal circumstances, the waveform remains stable. When the position of the step or pedal changes (for example, displacement, tilt, etc.) or is damaged, the distance detected by the sensor changes, and the waveform will also change accordingly. The change of the previous and next waveforms can generate an abnormal signal. Through the analysis of the waveform, the system can accurately determine the abnormal situation of the step or pedal and achieve more accurate safety monitoring. Further, the step sensor can send the detection waveform information corresponding to the multiple steps within the sensing range to the signal processing device; the signal processing device can obtain the step status of the multiple steps according to the detection waveform information, and obtain the safety detection result of the conveying equipment according to the step status of the multiple steps. When the safety detection result shows that the conveying equipment is abnormal, the safety warning or safety protection function of the escalator control system is triggered. The safety warning function can promptly alert passengers and maintenance personnel to potential dangers, while the safety protection function can stop the escalator when necessary to avoid accidents or further deterioration, effectively protecting the lives of passengers.

[0033] The safety detection device of the conveying equipment of this embodiment includes: a signal processing device and at least one sensor; wherein the sensor has a sensing range covering multiple steps in the conveying equipment; the sensor is used to send the detection waveform information corresponding to the multiple steps within the sensing range to the signal processing device; the signal processing device is used to obtain the step status of the multiple steps according to the detection waveform information. In the safety detection device of the conveying equipment provided by the embodiment of the present application, there may be at least one sensor, and the sensor has a sensing range covering multiple steps in the conveying equipment, and can sense the detection waveform information corresponding to the multiple steps within the sensing range. The detection area is a plane, which can cover the entire step range. Any abnormality in the step can immediately trigger safety protection, and there is no need to wait for the step to run to the return side for protection. The safety monitoring range can be expanded, and the efficiency and accuracy of safety monitoring can be improved, thereby improving the safety performance of the conveying equipment.

[0034] In an exemplary embodiment, the step sensor (including the first sensor and the second sensor) is infrared or microwave sensitive, and the sensing range can be a surface or a dense line. Then, based on the sensing range setting, the intrusion of smaller objects in the detection area can be identified, for example, objects with a detection area larger than 5*5mm can be detected. In addition, Figure 5As shown in the figure, the horizontal detection distance x and vertical detection distance y of the step sensor can be adjusted separately. Usually, the sensor is placed in the same direction as the stairway in its detection area, and the detection distance y is greater than x; and the height z of the detection area must be greater than the thickness of the sensor itself. Figure 5 Taking the sensor shown as an example, the sensing range of the sensor is a surface, x is set to the truss or step width (for example, 800mm, 1200mm and / or 1600mm), and y is set to the maximum distance to be detected (for example, 2000mm, and / or 10000mm, etc.).

[0035] In the safety detection device of the conveying equipment of this embodiment, the horizontal detection distance and vertical detection distance of the sensor in the safety detection device of the conveying equipment can be adjusted separately, thereby increasing the flexibility of adjusting the sensing range, thereby improving the safety detection efficiency and improving the safety performance of the conveying equipment.

[0036] In an exemplary embodiment, in view of the distance setting between the step sensor and the step, in the embodiment of the present application, a double step sensor can be set, and the step sensor can include a first sensor and a second sensor. The distance between the first sensor and the step is less than the preset distance threshold, and the distance is small. When a foreign object is sensed, the escalator remains in operation and issues an early warning signal to remind maintenance personnel that there is an abnormality in the step so that they can check, adjust or repair it during maintenance. The distance between the second sensor and the step is greater than the preset distance threshold, and the distance is large. Once a foreign object is sensed to invade, the safety protection function will be triggered to stop the escalator directly. This dual setting provides hierarchical safety protection, which can not only detect problems and prompt maintenance at an early stage, but also quickly stop the equipment in an emergency, further enhancing the safety and reliability of the system.

[0037] In an exemplary embodiment, at least one sensor includes a step sensor; the step sensor includes a first sensor and a second sensor; the first sensor is disposed below the step forward side of the conveying device; the second sensor is disposed below the step return side of the conveying device.

[0038] In an exemplary embodiment, the sensing range of the step sensor is parallel to the ladder path running track of the conveying equipment.

[0039] In an exemplary embodiment, the step sensor is used to generate detection waveform information corresponding to multiple steps within a sensing range; the detection waveform information includes a step signal corresponding to each of the multiple steps.

[0040] In an exemplary embodiment, if the sensing range of the step sensor is located below a plurality of steps, and there is a step among the plurality of steps that has sunk, the step sensor is used to generate a sinking signal for the sunken step; if no foreign objects enter the connection between the machine room corresponding to the conveying equipment and the stairway of the conveying equipment, and the connection between the machine room corresponding to the conveying equipment and the stairway of the conveying equipment, the signal waveform included in the detection waveform information is a straight line.

[0041] In an exemplary embodiment, if the sensing range of the step sensor is located below the multiple steps and there is no step sinking among the multiple steps, the signal waveform included in the detection waveform information is a straight line.

[0042] In an exemplary embodiment, if the sensing range of the step sensor covers multiple steps, the step sensor is used to detect the distance between each step and the step sensor, and obtain detection waveform information corresponding to the multiple steps within the sensing range according to the distance.

[0043] The at least one sensor may include a step sensor and a machine room sensor. The sensing range of the step sensor may be parallel to the running track of the ladder path of the conveying equipment; the sensing range of the step sensor may cover multiple steps of the conveying equipment. Figure 1 As shown, the step sensor may include a first sensor (for example, sensor 1) and a second sensor (for example, sensor 2), the first sensor being disposed below the forward side of the steps of the conveying equipment; the second sensor being disposed below the return side of the steps of the conveying equipment. The sensing range of the first sensor and the second sensor is parallel to the running track of the ladder and covers a plurality of steps or pedals. During the operation of the equipment, the steps or pedals are continuously monitored in real time to ensure that no position where an abnormality may occur is missed. The detection waveform information may include signal waveforms of the plurality of steps, and the detection waveform information includes a step signal corresponding to each step of the plurality of steps. The first sensor and the second sensor may generate signal waveforms of the plurality of steps covered by the sensing range based on sensing, which may include the following situations. In a possible implementation, the sensing range may be located below the plurality of steps and pedals, and the plurality of steps and their pedals are not within the sensing range. In this case, as Figure 2As shown, if there is no step sinking among the multiple steps, that is, the multiple steps are in normal condition, then the signal waveforms of the multiple steps and their pedals are a straight line; if there is a sunken step among the multiple steps, in this case, the step sensor (including the first sensor and the second sensor) can sense the sunken step and generate a step signal corresponding to the sunken step. In another possible implementation, the sensing range can cover the multiple steps and pedals, that is, the multiple steps and pedals can be within the sensing range. In this case, Figure 3 As shown, if there is no missing step or misplaced step in the multiple steps, that is, the multiple steps are in normal condition, then the signal waveform of the multiple steps and their pedals is a waveform containing the step signal corresponding to each step in the multiple steps; if there is an abnormal step with missing steps or misplaced steps in the multiple steps, the step sensor (including the first sensor and the second sensor) cannot sense the abnormal step, and the step signal of the abnormal step will be missing in the signal waveform of the multiple steps and their pedals generated by the step sensor. In another possible implementation, the sensing range can cover the multiple steps and pedals, that is, the multiple steps and pedals can be in the sensing range. In this case, Figure 4 As shown, the step sensor can be used to detect the distance between each step and the step sensor, and according to the distance, the detection waveform information corresponding to multiple steps within the sensing range can be obtained. At this time, the sensor can be used to detect the distance, and the waveform is formed according to the distance of the step or pedal sensed by the sensor, combined with the shape of the step or pedal and the sensor distance. Under normal circumstances, the waveform remains stable. When the position of the step or pedal changes (for example, displacement, tilt, etc.) or is damaged, the distance detected by the sensor changes, and the waveform will also change accordingly. The change of the waveform before and after can generate an abnormal signal. By analyzing the waveform, the system can accurately determine the abnormal situation of the step or pedal and achieve more accurate safety monitoring.

[0044] In the safety detection device of the conveying equipment of this embodiment, there may be at least one sensor, and the sensor has a sensing range covering multiple steps in the conveying equipment, and can sense the detection waveform information corresponding to the multiple steps within the sensing range. The detection area is a plane, which can cover the entire step range. Any abnormality in the step can immediately trigger safety protection, and there is no need to wait for the step to run to the return side before protection. The safety monitoring range can be expanded, and the efficiency and accuracy of safety monitoring and safety detection of the conveying equipment can be improved, thereby improving the safety performance of the conveying equipment.

[0045] In an exemplary embodiment, the at least one sensor includes a third sensor; the third sensor is arranged at the connection between the machine room corresponding to the conveying equipment and the ladder path of the conveying equipment.

[0046] In an exemplary embodiment, the at least one sensor includes a fourth sensor; the fourth sensor is arranged at the entrance of the machine room corresponding to the conveying equipment from the outside.

[0047] Among them, during the non-maintenance operation of the equipment, sensor 3, i.e., the third sensor, (installed at the connection between the machine room and the stairway) and sensor 4, i.e., the third sensor, (installed at the entrance to the machine room from the outside) continue to work, and when a foreign object is detected, a signal will be immediately sent out. This signal will trigger the safety warning function of the escalator control system, and promptly remind relevant personnel to pay attention to possible safety hazards; if the situation is more serious, it will also trigger the safety protection function to stop the escalator from running to prevent foreign objects from further affecting the operation of the equipment or causing harm to passengers. Among them, sensor 3 is located at the connection between the machine room and the stairway, which is a key position because foreign objects may enter the stairway system here, affecting the normal operation of the steps or pedals. By real-time monitoring of this area, sensor 3 can effectively prevent foreign objects from entering the stairway from the machine room side, ensure the smooth and safe operation of the stairway, and avoid step failures or other safety accidents caused by problems such as foreign object jamming. Sensor 4 is set at the entrance to the machine room from the outside, and its main function is to prevent foreign objects from entering the machine room. The machine room contains many important equipment and components, such as the drive host, control cabinet, etc. Foreign objects entering may damage these devices and affect the normal operation of the entire escalator or walkway system. The presence of sensor 4 can ensure that only authorized personnel or items without foreign objects can enter the machine room, thereby maintaining the cleanliness of the machine room environment and the normal working state of the equipment. Sensors 3 and 4, together with sensors installed below the forward and return sides of the steps or pedals (for example, sensors 1 and 2), form a complete detection system. They are responsible for monitoring different areas respectively, and work together to achieve all-round safety protection for escalators or walkways. Whether it is an abnormality of the steps or pedals themselves, or a foreign object intrusion problem that may occur in the machine room and surrounding areas, it can be discovered and handled in time, improving the safety and reliability of the entire equipment operation. In the maintenance operation state, sensors 3 and 4 are allowed not to detect sensor signals. This is because during the maintenance process, technicians may need to operate in these areas. At this time, if the sensors continue to work, unnecessary interference or false alarms may occur. This special setting not only ensures the safety detection function during normal operation, but also takes into account the convenience and efficiency of maintenance work, ensuring that the equipment can be reasonably managed and maintained under different operating conditions.

[0048] In the safety detection device of the conveying equipment of this embodiment, sensors 3 and 4 together with sensors installed below the forward side and return side of the steps or pedals (for example, sensors 1 and 2) constitute a complete detection system. Each sensor works together to monitor the safety of different parts. The first sensor, i.e., sensor 1, and the second sensor, i.e., sensor 2, can monitor and detect step anomalies of multiple steps of the conveying equipment, such as step sinking and step missing, etc. The third sensor, i.e., sensor 3, can effectively prevent foreign objects from entering the stairway from the machine room side, ensure the smooth and safe operation of the stairway, and avoid step failures or other safety accidents caused by problems such as foreign object jamming; the fourth sensor, i.e., sensor 4, is set at the entrance of the machine room from the outside, and its main function is to prevent foreign objects from entering the machine room. The machine room contains many important equipment and components, such as drive host, control cabinet, etc. Foreign objects entering may damage these equipment and affect the normal operation of the entire escalator or pedestrian system.

[0049] In an exemplary embodiment, the signal processing device is also used to obtain the safety detection result of the conveying equipment based on the step status of multiple steps; and obtain the safety detection result of the conveying equipment based on the sensor status of the connection between the machine room corresponding to the conveying equipment and the stairway of the conveying equipment, and the connection between the machine room corresponding to the conveying equipment and the stairway of the conveying equipment.

[0050] Among them, if the safety test results show that the conveying equipment is abnormal, the safety warning or safety protection function of the escalator control system is triggered. The safety warning function can promptly remind passengers and operation and maintenance personnel to pay attention to potential dangers, while the safety protection function can stop the escalator when necessary to avoid accidents or further deterioration, effectively protecting the lives of passengers.

[0051] The safety detection device of the conveying equipment of this embodiment includes: a signal processing device and at least one sensor; wherein the sensor has a sensing range covering multiple steps in the conveying equipment; the sensor is used to send the detection waveform information corresponding to the multiple steps within the sensing range to the signal processing device; the signal processing device is used to obtain the step status of the multiple steps according to the detection waveform information. In the safety detection device of the conveying equipment provided by the embodiment of the present application, there may be at least one sensor, and the sensor has a sensing range covering multiple steps in the conveying equipment, and can sense the detection waveform information corresponding to the multiple steps within the sensing range. The detection area is a plane, which can cover the entire step range. Any abnormality in the step can immediately trigger safety protection, and there is no need to wait for the step to run to the return side for protection. The safety monitoring range can be expanded, and the efficiency and accuracy of safety monitoring can be improved, thereby improving the safety performance of the conveying equipment.

[0052] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A safety detection device for conveying equipment, characterized in that: include: A signal processing device and at least one sensor; wherein, The sensor has a sensing range covering a plurality of steps in the conveying device; The sensor is used to send the detection waveform information corresponding to the plurality of steps within the sensing range to the signal processing device; The signal processing device is used to obtain the step status of the multiple steps according to the detection waveform information, obtain the safety status of the escalator, and perform early warning reminders, fault slow stop and fault emergency stop according to the severity of the safety status.

2. The safety detection device for conveying equipment according to claim 1, characterized in that: At least one of the sensors includes a step sensor; the step sensor includes a first sensor and a second sensor; the first sensor is arranged below the step forward side of the conveying device; the second sensor is arranged below the step return side of the conveying device.

3. The safety detection device for conveying equipment according to claim 2, characterized in that: The sensing range of the step sensor is parallel to the ladder running track of the conveying equipment.

4. The safety detection device for conveying equipment according to claim 2, characterized in that: The step sensor is used to generate the detection waveform information corresponding to the multiple steps within the sensing range; the detection waveform information includes a step signal corresponding to each of the multiple steps.

5. The safety detection device for conveying equipment according to claim 2, characterized in that: If the sensing range of the step sensor is located below the multiple steps, and there is a step among the multiple steps that has sunk, the step sensor is used to generate a sunken signal for the sunken step.

6. The safety detection device for conveying equipment according to claim 5, characterized in that: If the sensing range of the step sensor is located below the multiple steps, and none of the steps sink, the signal waveform included in the detection waveform information is a straight line; if no foreign objects enter the connection between the machine room corresponding to the conveying equipment and the stairway of the conveying equipment, and the connection between the machine room corresponding to the conveying equipment and the stairway of the conveying equipment, the signal waveform included in the detection waveform information is a straight line.

7. The safety detection device for conveying equipment according to claim 2, characterized in that: If the sensing range of the step sensor covers a plurality of the steps, the step sensor is used to detect the distance between each step and the step sensor, and obtain the detection waveform information corresponding to the plurality of steps within the sensing range according to the distance.

8. The safety detection device for conveying equipment according to claim 1, characterized in that: At least one of the sensors includes a third sensor; the third sensor is arranged at the connection between the machine room corresponding to the conveying equipment and the ladder path of the conveying equipment.

9. The safety detection device for conveying equipment according to claim 1, characterized in that: At least one of the sensors includes a fourth sensor; the fourth sensor is arranged at the entrance of the machine room corresponding to the conveying equipment from the outside.

10. The safety detection device for conveying equipment according to claim 1, characterized in that: The signal processing device is also used to obtain the safety detection result of the conveying equipment according to the step status of the multiple steps; and obtain the safety detection result of the conveying equipment according to the sensor status of the connection between the machine room corresponding to the conveying equipment and the stairway of the conveying equipment, and the connection between the machine room corresponding to the conveying equipment and the stairway of the conveying equipment.

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