Maintenance safety early warning system suitable for cold regenerator

Abstract

The invention provides a maintenance safety early warning system suitable for a cold regenerator. The maintenance safety early warning system comprises a sensing device, an alarm device and a controller. The sensing device is used for collecting working condition parameters of a target area of the cold regeneration machine, the sensing device comprises a plurality of sensors, the sensors at least comprise a vibration sensor, a hydraulic sensor and a displacement sensor, the vibration sensor is used for detecting the vibration frequency, the vibration amplitude and the vibration speed of a machine body of the cold regeneration machine, and the hydraulic sensor is used for detecting the working condition parameters of the target area. The hydraulic sensor is used for detecting liquid pressure of a hydraulic system of the cold regenerator, and the displacement sensor is used for detecting displacement of a piston rod of at least one supporting leg oil cylinder; the controller is electrically connected with the sensing device, the controller is electrically connected with the alarm device, and the controller is used for controlling the alarm device to be turned on or turned off according to at least one of detection signals of the multiple sensors. According to the scheme, the problem that in the prior art, personnel safety is harmed due to the fact that pressure relief of the supporting legs of the cold regenerator cannot be early warned in time is solved.

Description

Technical Field

[0001] The invention relates to the technical field of equipment maintenance early warning, and in particular to a maintenance safety early warning system suitable for a cold regeneration machine. Background Art

[0002] With the rapid development of infrastructure construction in my country, the demand for road renewal and reconstruction is increasing. The cold recycler performs cold regeneration on old asphalt pavement through processes such as crushing, mixing, leveling, and compaction. It not only reduces the amount of asphalt mixture waste but also saves materials. It is an efficient and environmentally friendly solution for road maintenance. The monitoring and safety warning of the equipment during the construction process are particularly important.

[0003] In the prior art, the cutter heads of the operating devices of cold regeneration machines need to be replaced regularly. When the cutter heads are replaced, the maintenance personnel are under the machine. The machine legs may release pressure due to special factors, causing the body of the machine to drop, posing a threat to the personal safety of the maintenance personnel. At present, among the existing cold regeneration machine products, some models use sensors to monitor key parameters such as pressure and temperature, and some models use observation instruments to display key parameters. Once the key parameters exceed the limit, no warning can be issued. For equipment such as cold regeneration machines that have dynamic and hydraulic components, it is difficult to fully and accurately monitor the parameters of the equipment and it is impossible to achieve safety warnings.

[0004] To address the above problems, no effective solution has been proposed yet. Summary of the invention

[0005] The main purpose of the present invention is to provide a maintenance safety warning system suitable for a cold regeneration machine, so as to solve the problem in the prior art that the pressure relief of the cold regeneration machine legs cannot be warned in time, thus endangering the safety of personnel.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided a maintenance safety warning system suitable for a cold regeneration machine, comprising: a sensing device, the sensing device is used to collect operating parameters of a target area of ​​the cold regeneration machine, the sensing device comprises a plurality of sensors, the plurality of sensors at least comprise: a vibration sensor, a hydraulic sensor, a displacement sensor, the vibration sensor is used to detect the vibration frequency, vibration amplitude and vibration speed of the body of the cold regeneration machine, the hydraulic sensor is used to detect the liquid pressure of the hydraulic system of the cold regeneration machine, the displacement sensor is used to detect the displacement of the piston rod of at least one outrigger cylinder; an alarm device; a controller, the controller is electrically connected to the sensing device, the controller is electrically connected to the alarm device, and the controller is used to control the alarm device to be turned on or off according to at least one of the detection signals of the plurality of sensors.

[0007] Furthermore, the maintenance safety warning system suitable for the cold regeneration machine includes: a calibration device, which is used to periodically control the piston rod of at least one outrigger cylinder to move a preset distance in a preset direction, and detect the state of the alarm device to determine whether the controller and the alarm device are faulty.

[0008] Furthermore, the controller is used to control the alarm device to be turned on when the vibration parameter detected by the vibration sensor is greater than a first preset value, and / or the controller is used to control the alarm device to be turned on when the hydraulic parameter detected by the hydraulic sensor is less than a second preset value, and / or the controller is used to control the alarm device to be turned on when the displacement detected by the displacement sensor is greater than a third preset value.

[0009] Furthermore, the controller is used to determine the displacement change rate of the corresponding outrigger cylinder according to the displacement of the piston rod, and the controller is used to control the alarm device to turn on when the displacement change rate is greater than a fourth preset value.

[0010] Furthermore, the sensing device also includes: a temperature sensor, the temperature sensor is arranged close to the power component of the cold regeneration machine, the temperature sensor is electrically connected to the controller, and the controller is used to control the alarm device to turn on when the detection temperature of the temperature sensor is greater than a fifth preset value.

[0011] Furthermore, the maintenance safety warning system suitable for the cold regeneration machine also includes: a remote communication device, which is electrically connected to the controller, and is used to transmit the status of the controller to a remote central monitoring system, and to receive instructions from the central monitoring system to upgrade the firmware of the controller.

[0012] Furthermore, the alarm device includes at least one of an acoustic alarm device and an optical alarm device.

[0013] Furthermore, there are four displacement sensors, which are respectively arranged inside the left front outrigger oil cylinder, the right front outrigger oil cylinder, the left rear outrigger oil cylinder, and the right rear outrigger oil cylinder.

[0014] Furthermore, the maintenance safety warning system applicable to the cold regeneration machine also includes: a display device, the display device is electrically connected to the controller, and the display device is used to load a user graphical interface to display the detection parameters of multiple sensors in real time.

[0015] Furthermore, the display device is electrically connected to the controller via a CANbus.

[0016] By applying the technical solution of the present invention, a set of efficient and intelligent cold regeneration machine maintenance safety warning system is formed by integrating the sensor device and the controller. The controller can analyze and judge according to the data transmitted by multiple sensors. Once any unsafe signal is detected, such as abnormal vibration, hydraulic pressure drop or leg displacement change, the controller will automatically control the alarm device to start and send out a warning signal. It can monitor the safety status of the cold regeneration machine in all directions during the maintenance process, and timely warn of potential dangers, effectively protecting the life safety of maintenance personnel, and also improving the efficiency and reliability of maintenance work. This solves the problem of endangering personnel safety due to the failure of timely warning of cold regeneration machine leg pressure relief in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram showing an embodiment of a maintenance safety warning system applicable to a cold regeneration machine according to the present invention is shown;

[0019] Figure 2 A system logic diagram of an embodiment of a maintenance safety warning system applicable to a cold regeneration machine according to the present invention is shown. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0024] Combination Figure 1 to Figure 2 As shown, according to a specific embodiment of the present application, a maintenance safety warning system suitable for a cold regeneration machine is provided.

[0025] Specifically, the maintenance safety warning system includes: a sensor device, an alarm device and a controller. The sensor device is used to collect the working parameters of the target area of ​​the cold regeneration machine. The sensor device includes multiple sensors, and the multiple sensors include at least: a vibration sensor, a hydraulic sensor, and a displacement sensor. The vibration sensor is used to detect the vibration frequency, vibration amplitude, and vibration speed of the body of the cold regeneration machine. The hydraulic sensor is used to detect the liquid pressure of the hydraulic system of the cold regeneration machine. The displacement sensor is used to detect the displacement of the piston rod of at least one outrigger oil cylinder; the controller is electrically connected to the sensor device, and the controller is electrically connected to the alarm device. The controller is used to control the alarm device to be turned on or off according to at least one of the detection signals of the multiple sensors.

[0026] By applying the technical solution of the present invention, a set of efficient and intelligent cold regeneration machine maintenance safety warning system is formed by integrating the sensor device and the controller. The controller can analyze and judge according to the data transmitted by multiple sensors. Once any unsafe signal is detected, such as abnormal vibration, hydraulic pressure drop or leg displacement change, the controller will automatically control the alarm device to start and send out a warning signal. It can monitor the safety status of the cold regeneration machine in all directions during the maintenance process, and timely warn of potential dangers, effectively protecting the life safety of maintenance personnel, and also improving the efficiency and reliability of maintenance work. This solves the problem of endangering personnel safety due to the failure of timely warning of cold regeneration machine leg pressure relief in the prior art.

[0027] It should be further explained that the vibration sensor is used to detect the vibration frequency, vibration amplitude and vibration speed of the cold regeneration machine. The vibration frequency refers to the number of times an object completes a vibration cycle in a unit of time, usually in Hertz (Hz). The vibration frequency can reflect the natural frequency and working frequency of the mechanical parts. If the monitored vibration frequency matches the natural frequency of the machine, resonance may be caused, which is very unfavorable to the stability and safety of the machine. In the maintenance safety early warning system of the cold regeneration machine, by monitoring the vibration frequency, it can be determined whether an abnormal vibration mode has occurred, indicating a possible mechanical failure or structural problem. The vibration amplitude refers to the maximum displacement of the machine body from its initial position or equilibrium position during the vibration process. The magnitude of the vibration amplitude is directly related to the stability and safety of the machine. If the amplitude is too large, it may mean that the mechanical parts are excessively worn, loose, or there are other faults, all of which may pose a threat to personnel during the maintenance process. Therefore, monitoring the vibration amplitude is an important part of the early warning system, which can help determine the stability of the cold regeneration machine under maintenance and discover unsafe factors in a timely manner. The vibration velocity is the displacement of the vibrating particle in one second, usually expressed in centimeters per second (cm / s) or meters per second (m / s). The vibration velocity reflects the intensity and energy of the vibration. When the cold regeneration machine is under maintenance, if an abnormal increase in vibration velocity is detected, this may indicate that there is too fast or too large vibration inside the machine, indicating potential structural problems or system failures. High vibration velocity may not only cause damage to mechanical components, but also pose a direct safety threat to the maintenance personnel below.

[0028] Furthermore, the maintenance safety warning system suitable for the cold regeneration machine includes: a calibration device, which is used to periodically control the piston rod of at least one outrigger cylinder to move a preset distance in a preset direction, and detect the state of the alarm device to determine whether the controller and the alarm device are faulty.

[0029] By controlling the precise movement of the piston rod, the calibration device can test the detection accuracy of the sensor. If the sensor reading does not match the actual movement distance, it indicates that there may be an error or fault, and further correction or maintenance is required to ensure that the collected data is accurate and reliable. The addition of the calibration device enables the maintenance safety warning system to maintain a high degree of monitoring accuracy and system stability during long-term continuous operation, avoiding false alarms or missed alarms caused by sensor aging or environmental factors. This function is particularly important in large-scale highway renovation projects. It can ensure that the warning system always maintains the best condition during months or even years of continuous work, providing continuous protection for construction safety. In addition, the calibration device can ensure that the maintenance safety warning system maintains excellent performance during long-term use, detect potential problems in a timely manner, and prevent safety hazards caused by system failures, thereby providing solid safety protection for the maintenance of cold regeneration machines.

[0030] Specifically, the controller is used to control the alarm device to be turned on when the vibration parameter detected by the vibration sensor is greater than a first preset value, and / or, the controller is used to control the alarm device to be turned on when the hydraulic parameter detected by the hydraulic sensor is less than a second preset value, and / or, the controller is used to control the alarm device to be turned on when the displacement detected by the displacement sensor is greater than a third preset value.

[0031] When the vibration frequency, vibration amplitude or vibration speed parameters detected by the vibration sensor are greater than the first preset value, this may indicate that there is an abnormality inside the cold regeneration machine, such as wear, looseness or imminent failure of mechanical parts. After the controller recognizes the abnormal vibration parameters, it immediately activates the alarm device to alert the maintenance personnel and prompt them to evacuate to a safe area immediately to avoid possible damage caused by mechanical failure.

[0032] The controller continuously monitors the hydraulic parameters fed back by the hydraulic sensor, such as the pressure of the hydraulic system. When the hydraulic pressure is less than the preset second preset value, this usually means that there may be a leak in the hydraulic system, pump failure or other problems, resulting in a decrease in the stability of the outrigger cylinder. In this case, the controller will also immediately activate the alarm device to ensure that maintenance personnel can promptly notice the unsafe state of the hydraulic system and take prompt measures to avoid danger to the cold regeneration machine due to hydraulic system failure.

[0033] The displacement sensor is responsible for monitoring the displacement of the outrigger cylinder piston rod to ensure the stability of the outrigger during maintenance. Once the piston rod displacement is detected to be greater than the preset third preset value, it means that the outrigger may begin to depressurize or move, posing a direct threat to the maintenance personnel below. After the controller recognizes the abnormal displacement, it will also immediately activate the alarm device and issue an emergency warning to ensure the safety of personnel.

[0034] The controller continuously receives real-time data from multiple sensors and compares it with the preset safety threshold. Once any parameter is found to exceed the safety range, an alarm will be immediately activated to alert maintenance personnel, prompting them to take prompt countermeasures to effectively prevent potential accidents and protect personnel lives. This mechanism greatly improves the safety level of the cold regeneration machine during maintenance through intelligent monitoring and immediate response.

[0035] Specifically, the controller is used to determine the displacement change rate of the corresponding outrigger cylinder according to the displacement of the piston rod, and the controller is used to control the alarm device to turn on when the displacement change rate is greater than a fourth preset value.

[0036] The displacement change rate refers to the change in the displacement of the piston rod per unit time, which directly reflects the stability of the outrigger cylinder. When the displacement change rate suddenly increases and is greater than the fourth preset value, it usually means that the cylinder is undergoing abnormal displacement, which may be caused by hydraulic system leakage, sudden change in internal cylinder pressure, or mechanical failure. The controller can quickly identify this change, activate the alarm in time, and provide immediate safety warning for maintenance personnel. Monitoring the displacement change rate can provide more detailed and real-time dynamic information. The abnormal increase in the displacement change rate often indicates an impending danger. This warning is not only more timely, but also can more accurately reflect the real-time working status of the cylinder, improving the system's warning accuracy and reliability. For example: When constructing in complex terrains such as mountains and hills, the unevenness and changes of the ground put forward higher requirements for the stability of the cold regeneration machine. The monitoring of the displacement change rate can accurately capture the abnormal response of the outrigger cylinder when encountering obstacles or uneven terrain, and issue a timely warning to avoid equipment overturning.

[0037] Furthermore, the sensing device further includes: a temperature sensor, the temperature sensor is arranged near the power component of the cold regeneration machine, the temperature sensor is electrically connected to the controller, and the controller is used to control the alarm device to start when the detected temperature of the temperature sensor is greater than a fifth preset value. The introduction of the temperature sensor further enhances the comprehensiveness and responsiveness of the maintenance safety early warning system, especially in monitoring the overheating of the power component of the cold regeneration machine.

[0038] Temperature sensors are installed near key power components of the cold regenerator, such as the engine, transmission system or hydraulic pump. These components will generate a lot of heat during operation. If the heat is not dissipated in time or the operation is abnormal, the temperature will rise, which may cause component damage or even fire. When the detected temperature is greater than the fifth preset value, it means that there is a risk of overheating of the power component. The controller will then activate the alarm device and issue an overheating warning, alerting maintenance personnel to pay attention to the equipment status in advance to avoid accidents caused by overheating.

[0039] In extreme cases, if the temperature of the power components rises sharply to a level that may cause a serious accident, the controller will not only activate the alarm device, but may also trigger the emergency shutdown procedure, cut off the power source, and immediately stop all operations of the cold regeneration machine to prevent the overheated components from causing greater damage and protect the safety of machinery and personnel. For example: When performing asphalt pavement regeneration operations in high temperature environments in summer, the risk of overheating of the equipment increases significantly, affecting the performance and service life of the equipment. The addition of temperature sensors enables the system to monitor the temperature changes of power components in real time. Once overheating is detected, an alarm will be immediately issued to remind the operator to take cooling measures, such as suspending operations and increasing the efficiency of the cooling system. This function effectively avoids failures caused by equipment overheating and extends the service life of the equipment.

[0040] Furthermore, the maintenance safety warning system for cold regeneration machines also includes: a remote communication device, which is electrically connected to the controller, and is used to transmit the state of the controller to a remote central monitoring system, and is used to receive instructions from the central monitoring system to upgrade the firmware of the controller. The integration of the remote communication device enables the maintenance safety warning system for cold regeneration machines to have the capabilities of remote monitoring, fault diagnosis, preventive maintenance and firmware upgrades, enhances the intelligence and automation level of the system, provides a more comprehensive and efficient guarantee for the maintenance safety of the cold regeneration machine, and also provides strong support for the equipment management and maintenance of construction companies.

[0041] The remote communication device is electrically connected to the controller and can transmit the status of the controller, including but not limited to sensor data, alarm status, system operation log and other information, to the remote central monitoring system in real time. This real-time data transmission capability enables the central monitoring system to remotely monitor the status of the cold regeneration machine's maintenance safety warning system and promptly understand any abnormal conditions on site. When a system abnormality is found or the warning mechanism is activated, the central monitoring system can quickly analyze the cause of the fault and guide the on-site maintenance personnel to handle it correctly, avoid misoperation, and improve the efficiency and accuracy of fault handling.

[0042] The central monitoring system can perform trend analysis on the maintenance safety warning system of the cold regeneration machine based on the data transmitted by the remote communication device. By monitoring the system operation status and the changing trend of sensor data, possible future failures can be predicted, and the maintenance team can be notified to perform preventive maintenance in advance, reducing production delays and safety risks caused by system downtime.

[0043] The remote communication device also supports receiving instructions from the central monitoring system for remote upgrading of the controller’s firmware. With the advancement of technology and the improvement of safety standards, firmware upgrades are key to ensuring that the early warning system maintains optimal performance and functionality. Through the remote communication device, the central monitoring system can push firmware updates safely and conveniently without on-site operation, reducing upgrade costs and time consumption, while ensuring continuous optimization and updating of the system.

[0044] Specifically, the alarm device includes at least one of an acoustic alarm device and an optical alarm device.

[0045] The combined use of acoustic alarm devices and optical alarm devices allows the early warning signals to be clearly perceived in various environments, especially during nighttime construction or high-noise environments, such as nighttime regeneration operations on urban roads and mining operations in mines. The acoustic alarm device can penetrate noisy environments, while the optical alarm device can provide eye-catching visual prompts at night or in low-visibility conditions. The dual early warning mechanism ensures that operators can respond to equipment abnormalities in a timely manner, avoiding misoperation and accidents. This design reflects the comprehensiveness and humanity of the early warning system, and improves the safety and efficiency of construction. Figure 1 As shown, in this embodiment, the acoustic alarm device is an alarm buzzer, and the optical alarm device is a rotating alarm light. The rotating alarm light is connected to the controller via the X2_05 interface, and the alarm buzzer is connected to the controller via the X2_06 interface.

[0046] Specifically, there are four displacement sensors, which are respectively arranged inside the left front outrigger oil cylinder, the right front outrigger oil cylinder, the left rear outrigger oil cylinder, and the right rear outrigger oil cylinder.

[0047] The layout design of four displacement sensors enables all-round monitoring of the displacement of the cold regeneration machine's outrigger cylinders. It not only monitors the stability of the equipment in real time, but also helps operators control the movement and positioning of the equipment more accurately. Once the displacement sensors detect that the displacement change of a certain outrigger cylinder exceeds the third preset value, they will immediately send a signal to the controller. The controller analyzes these signals, evaluates the stability of the cylinder, and, if necessary, provides immediate visual and auditory warnings by activating alarm devices such as rotating alarm lights and alarm buzzers to notify maintenance personnel of possible safety risks.

[0048] The displacement sensor is connected to the controller input pin interface through physical lines, such as Figure 1As shown, the left front outrigger cylinder position sensor is connected via X1_09, the right front outrigger cylinder position sensor is connected via X1_10, the left rear outrigger cylinder position sensor is connected via X1_20, and the right rear outrigger cylinder position sensor is connected via X1_21. The four displacement sensors transmit the detected displacement data to the controller in the form of electrical signals through the physical line every 10ms. The controller includes a programmable logic controller (PLC) that can analyze the data from the four displacement sensors in real time and determine whether the alarm device needs to be activated based on the preset threshold. If the displacement change rate exceeds the fifth preset value, the controller can respond quickly and send a control signal to the rotating alarm light and alarm buzzer through the X2_05 and X2_06 interfaces to trigger an early warning.

[0049] Furthermore, the maintenance safety warning system for the cold regeneration machine also includes: a display device, the display device is electrically connected to the controller, and the display device is used to load a user graphical interface to display the detection parameters of multiple sensors in real time. The display device presents data from multiple sensors in real time through the user graphical interface, including but not limited to displacement sensors, temperature sensors, and vibration sensors. In the user graphical interface, these data are displayed in the form of charts, numbers or color codes to ensure that the information is clear and intuitive. For example: the displacement data of the outrigger cylinder may be presented in the form of a real-time curve chart, allowing maintenance personnel to observe the trend of displacement changes; the temperature of the power component monitored by the temperature sensor may be displayed in the form of a color-coded heat map, and different colors correspond to different temperature levels, intuitively indicating the risk of overheating; the alarm status and remote communication status can also be indicated on the interface through simple icons or text, so that the status of the entire system is clear at a glance.

[0050] The graphical user interface is designed with user experience in mind, making operation simple and intuitive. This real-time status visualization provides operators and maintenance personnel with intuitive system health and safety status information, allowing them to quickly understand the current warning status and respond in a timely manner.

[0051] Specifically, the display device is electrically connected to the controller via the CANbus.

[0052] like Figure 1 As shown, in this embodiment, the display device is an instrument display, and the display device is electrically connected to the controller via the CANbus bus. The use of the CANbus bus ensures the stability and high speed of data transmission, so that the display device can update the equipment status information in real time and accurately. In large-scale construction projects, multiple devices may need to work at the same time. Real-time communication and data sharing between devices through CANbus helps coordinate the operation of the equipment, avoid interference and conflict between devices, and ensure the smooth progress of construction.

[0053] like Figure 2 As shown, the steps for using the maintenance safety warning system are as follows:

[0054] S1. When the cold regeneration machine enters the maintenance mode, the system automatically starts and completes the initialization check to ensure that all components, including sensors, controllers and display devices, are in normal working condition. If the sensor fails, an alarm pops up on the display, and all components enter step S2 normally;

[0055] S2, obtain the data of each sensor, and transmit the data to the controller for analysis and calculation, and detect whether the parameters of each sensor are within the safe range;

[0056] S3, judging whether the outrigger has been displaced by the calculation result of the controller, and displaying the outrigger height on the display;

[0057] S4. If the outrigger is displaced, an alarm will pop up on the display, and the alarm device will be activated, so that the rotating alarm light will light up and the buzzer will sound to provide a quick warning.

[0058] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0059] 1. By integrating the sensor device and the controller, an efficient and intelligent maintenance safety warning system for the cold regeneration machine is formed. The controller can analyze and judge based on the data transmitted by multiple sensors. Once any unsafe signal is detected, such as abnormal vibration, hydraulic pressure drop or leg displacement change, the controller will automatically control the alarm device to start and send out a warning signal. It can monitor the safety status of the cold regeneration machine in all directions during the maintenance process, and timely warn of potential dangers, effectively protecting the life safety of maintenance personnel, and also improving the efficiency and reliability of maintenance work.

[0060] 2. Collect data from four displacement sensors every 10ms, and transmit the collected data to the controller for calculation and analysis. It can quickly analyze whether the vehicle has a body drop caused by outrigger pressure relief, so as to solve the problem of endangering personnel safety in the prior art due to the failure of timely warning of outrigger pressure relief of the cold regeneration machine.

[0061] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0062] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present invention.

[0063] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A maintenance safety warning system suitable for cold regeneration machine, characterized in that: include: A sensor device, the sensor device is used to collect operating parameters of a target area of ​​the cold regeneration machine, the sensor device includes a plurality of sensors, and the plurality of sensors include at least: a vibration sensor, a hydraulic sensor, and a displacement sensor. The vibration sensor is used to detect the vibration frequency, vibration amplitude, and vibration speed of the body of the cold regeneration machine. The hydraulic sensor is used to detect the liquid pressure of the hydraulic system of the cold regeneration machine. The displacement sensor is used to detect the displacement of the piston rod of at least one outrigger oil cylinder. Alarm device; A controller is electrically connected to the sensing device, and the controller is electrically connected to the alarm device, and the controller is used to control the alarm device to be turned on or off according to at least one of the detection signals of the multiple sensors.

2. The maintenance safety warning system for cold regeneration machine according to claim 1 is characterized in that: The maintenance safety warning system suitable for the cold regeneration machine includes: a calibration device, which is used to periodically control the piston rod of at least one outrigger cylinder to move a preset distance in a preset direction, and detect the state of the alarm device to determine whether the controller and the alarm device are faulty.

3. The maintenance safety warning system for cold regeneration machine according to claim 1 is characterized in that: The controller is used to control the alarm device to be turned on when the vibration parameter detected by the vibration sensor is greater than a first preset value, and / or the controller is used to control the alarm device to be turned on when the hydraulic parameter detected by the hydraulic sensor is less than a second preset value, and / or the controller is used to control the alarm device to be turned on when the displacement detected by the displacement sensor is greater than a third preset value.

4. The maintenance safety warning system for cold regeneration machine according to claim 1 is characterized in that: The controller is used to determine the displacement change rate of the corresponding outrigger cylinder according to the displacement of the piston rod, and the controller is used to control the alarm device to turn on when the displacement change rate is greater than a fourth preset value.

5. The maintenance safety warning system for cold regeneration machine according to claim 1 is characterized in that: The sensing device also includes: a temperature sensor, which is arranged close to the power component of the cold regeneration machine, and the temperature sensor is electrically connected to the controller. The controller is used to control the alarm device to turn on when the detection temperature of the temperature sensor is greater than a fifth preset value.

6. The maintenance safety warning system for cold regeneration machine according to claim 1 is characterized in that: The maintenance safety warning system suitable for the cold regeneration machine also includes: a remote communication device, which is electrically connected to the controller, and is used to transmit the status of the controller to a remote central monitoring system, and is used to receive instructions from the central monitoring system to upgrade the firmware of the controller.

7. The maintenance safety warning system for cold regeneration machine according to claim 1 is characterized in that: The alarm device includes at least one of an acoustic alarm device and an optical alarm device.

8. The maintenance safety warning system for cold regeneration machine according to claim 1 is characterized in that: There are four displacement sensors, which are respectively arranged inside the left front outrigger oil cylinder, the right front outrigger oil cylinder, the left rear outrigger oil cylinder, and the right rear outrigger oil cylinder.

9. The maintenance safety warning system for cold regeneration machine according to claim 1 is characterized in that: The maintenance safety warning system suitable for the cold regeneration machine also includes: a display device, which is electrically connected to the controller and is used to load a user graphical interface to display the detection parameters of the multiple sensors in real time.

10. The maintenance safety warning system for cold regeneration machine according to claim 9, characterized in that: The display device is electrically connected to the controller via a CANbus.

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