An intelligent management system for safe operations in confined spaces

Abstract

The present invention relates to the field of safety monitoring technology, and in particular to an intelligent management system for safe operation in a confined space, comprising a device body and a controller, wherein the controller comprises: an infrared sensing module: used to sense whether an operator is approaching; a voice broadcast module: used to voice broadcast a preset first alarm prompt message; a recording module: used to start a recording device to collect environmental audio data when sensing that an operator is approaching; a face recognition module: used to perform face recognition on the sensed operator; a real-time monitoring management module: used to obtain environmental gas data of a confined space in real time, and to organize environmental audio data, environmental gas data, face recognition data, entry confirmation information and exit confirmation information as work record data. The present invention can avoid the occurrence of safety accidents in confined space operations, ensure the personal safety of operators, enhance the safety awareness of operators, and can always provide safety reminders and warnings to operators.

Description

Technical Field

[0001] The present invention relates to the technical field of safety monitoring, and in particular to an intelligent management system for safe operations in confined spaces. Background Art

[0002] Confined space operations in sewage treatment plants are relatively frequent, mainly involving equipment maintenance, pool desilting and other operations. Poor natural ventilation inside confined spaces can easily lead to the accumulation of toxic, harmful, flammable and explosive substances or insufficient oxygen content, posing a high risk of operational safety. In the existing technology, it is easy to have inadequate safety management of confined space operations, carelessness of operators, and incomplete operating procedures. If the confined space safety protection materials are not in place, it is very easy for major safety accidents to occur. Summary of the invention

[0003] The purpose of the present invention is to provide an intelligent management system for safe operations in confined spaces, which can avoid the occurrence of safety accidents in confined space operations, ensure the personal safety of operators, enhance the safety awareness of operators, and provide safety reminders and warnings to operators at all times.

[0004] In order to achieve the above object, an intelligent management system for safe operation in confined space is provided, comprising a mobile confined space operation alarm device and a fixed confined space operation alarm device connected in communication, the fixed confined space operation alarm device comprising a device body and a controller, the controller comprising the following modules:

[0005] Infrared sensing module: used to sense whether the operator is approaching;

[0006] Voice broadcast module: used to voice broadcast the preset first alarm prompt information when sensing the approach of the operator;

[0007] Audio recording module: used to start the recording device to collect environmental audio data when it senses that a worker is approaching;

[0008] Face recognition module: used to perform face recognition on the sensed operator and determine whether the operator belongs to the operator system database. If so, it is determined whether there is entry confirmation information. If not, it generates the operator entry prompt operation information. If so, it generates the operator departure prompt operation information.

[0009] Real-time monitoring management module: It is used to obtain the environmental gas data of the confined space from the mobile confined space operation alarm device in real time when receiving information feedback of the entry prompt operation information, and after detecting abnormal environmental gas data, continuously voice broadcast the preset second alarm prompt information through the voice broadcast module; it is also used to turn off the recording device when receiving information feedback of the exit prompt operation information, and organize the environmental audio data, environmental gas data, face recognition data, entry confirmation information and exit confirmation information as work record data.

[0010] Furthermore, the controller also includes the following modules:

[0011] Timing management module: when receiving information feedback of entry prompt operation information, it is used to count down according to the preset countdown parameters and remind the operator according to the preset interval time.

[0012] Furthermore, the controller also includes the following modules:

[0013] Positioning management module: used to obtain the first positioning information of the mobile confined space operation alarm device in real time when receiving information feedback of the entry prompt operation information, and analyze and calculate the relative position information of the mobile confined space operation alarm device and the fixed confined space operation alarm device according to the second positioning information of the fixed confined space operation alarm device; and also used to update and display the relative position information on the fixed confined space operation alarm device in real time.

[0014] Furthermore, the controller also includes the following modules:

[0015] Parameter adjustment module: used to obtain the parameter adjustment requirements of the current operator when it is determined that the operator belongs to the operator system library, and adjust the corresponding countdown parameters, interval time and alarm level response thresholds of various environmental parameters in the environmental gas data according to the parameter adjustment requirements.

[0016] Furthermore, the controller is electrically connected to a plurality of external speakers, the voice broadcast module includes a built-in speaker, and the controller also includes the following modules:

[0017] Speaker controller management module: used to number the external speakers and built-in speakers, and set the start and stop and volume of the external speakers and built-in speakers according to the operator's parameter adjustment requirements.

[0018] Furthermore, the device body includes a base, on which a columnar shell is provided, the upper surface of the columnar shell is inclined forward and is equipped with a touch display screen and a camera, a controller, a communication module connected to the mobile confined space operation alarm device, an infrared detection module for detecting approaching personnel, and a voice alarm module for issuing voice alarm prompt information are provided inside the columnar shell, and the touch display screen, communication module, infrared detection module and voice alarm module are all electrically connected to the controller.

[0019] Furthermore, the mobile confined space operation alarm device includes a portable shell, a hanging buckle is provided on the back of the outer surface of the portable shell, and a controller, a positioning module, a touch display screen, a communication module for real-time communication with an external smart device, a gas detection module for detecting the concentration of toxic and harmful gases in the gas around the operator, and a voice alarm module for issuing voice alarm prompt information are provided inside the portable shell, and the touch display screen, positioning module, communication module, gas detection module and voice alarm module are electrically connected.

[0020] Principles and advantages:

[0021] 1. The fixed confined space operation alarm device must be used in conjunction with the mobile confined space operation alarm device, and the mobile confined space operation alarm device is used to be carried by the operators.

[0022] When workers need to enter a confined space to work, they must first operate the touch screen on the fixed confined space work alarm device. The infrared sensing module senses whether someone is approaching. If so, the recording module turns on the recording function (until the end of the work), and the voice broadcast module broadcasts the preset first alarm prompt information, such as "You have entered the confined space work area, please pay attention to safety. For confined space operations, the principle of 'ventilation first, then detection, and then operation' must be strictly followed to ensure operational safety. Before operation, please complete various operating procedures, perform face recognition in this system, and register the workers. After registration, please press the operator entry confirmation button."

[0023] 2. The face recognition module performs face recognition. After the face recognition is passed and the operator completes the relevant pre-registration preparations on the touch screen, the parameter adjustment module obtains the parameter adjustment requirements of the current operator, and adjusts the corresponding countdown parameters, interval time and alarm level response thresholds of each environmental parameter in the environmental gas data according to the parameter adjustment requirements. Then, the timing management module broadcasts the content on time according to the countdown parameters and interval time, for example, set to 30 seconds, and the time starting point is the time when the infrared sensor approaches. By reminding, the possibility of accidents caused by the operator's neglect is avoided, thereby ensuring the safety of operations in confined spaces. For example, the interval time is a reminder every 5 minutes, the reminder duration is 30 seconds, and the reminder content is, for example: "You have entered the confined space for more than 5 minutes, please pay attention to safety, please always pay attention to the monitoring gas concentration, and if you feel uncomfortable, please stop working immediately." Safety accidents need to be avoided as much as possible. By repeatedly broadcasting safety precautions, it is conducive to ensuring the life safety of operators in confined spaces.

[0024] 3. The fixed confined space operation alarm device will communicate with the mobile confined space operation alarm device. The mobile confined space operation alarm device has various gas detection sensors, and the gas detection data of the mobile confined space operation alarm device is received in real time through the communication module, so as to facilitate external operators to monitor and manage the oxygen, hydrogen sulfide, carbon monoxide, methane and other gases in the confined space operation in real time, and when the gas indicators are abnormal, the voice broadcast module will continuously broadcast the preset second alarm prompt information, such as "Monitoring data is abnormal, please evacuate immediately". This solution can communicate with operators in confined spaces in real time, and monitor the concentration of toxic and harmful gases in real time, so as to provide timely data support when operators encounter unexpected conditions or need rescue, and ensure the safety of operators.

[0025] 4. This solution can effectively record the operators to form work record data, accurately register their operation information, check their entry and exit information, and track and trace the operation process. It provides an intelligent management method for limited space operation management, breaks the traditional operation management registration method, and realizes the intelligent, smart and digital management of limited space operations. It can effectively prevent the occurrence of safety accidents in limited space operations and effectively protect the life and property safety of operators.

[0026] Figure Description

[0027] Figure 1 This is a logic block diagram of an intelligent management system for safe operation in a confined space according to an embodiment of the present invention;

[0028] Figure 2 It is an axonometric view of the fixed confined space operation alarm device from the front view;

[0029] Figure 3 It is an axonometric view of the fixed confined space operation alarm device from the rear;

[0030] Figure 4 It is an axonometric view of the front surface of the mobile confined space operation alarm device when viewed from above;

[0031] Figure 5 This is an axonometric view of the back view of the mobile confined space operation alarm device. DETAILED DESCRIPTION

[0032] The following is further described in detail through specific implementation methods:

[0033] The reference numerals in the drawings of the specification include: a columnar housing 1, a touch display screen 2, a sound outlet 3, a cover 4, a base 5, a wiring through hole 6, and a cabinet door 7.

[0034] Embodiment 1

[0035] An intelligent management system for safe operation in confined spaces, basically Figure 1 As shown, it includes a mobile limited space operation alarm device with communication connection and a fixed limited space operation alarm device. The fixed type is installed next to the limited space operation entrance and is mainly used in relatively fixed limited space places such as factory areas and off-site pumping stations. The alarm device has functions such as limited space operation induction alarm, personnel entry confirmation, face recognition registration, operation dynamic alarm, gas monitoring abnormal alarm, and operator dynamic abnormal monitoring. The mobile type is mainly used by operators to carry with them. The application scenarios include dredging and maintenance of factory sewage inspection wells. The fixed limited space operation alarm device includes a device body and a controller. The controller includes the following modules at the software level:

[0036] Infrared sensing module: used to sense whether the operator is approaching;

[0037] Voice broadcast module: used to broadcast the preset first alarm prompt information by voice when sensing the approach of operators; for example, "You have entered the confined space operation area, please pay attention to safety. When working in confined spaces, you must strictly abide by the principle of 'ventilation first, then detection, and then operation' to ensure operation safety. Please complete various operating procedures before operation, and perform face recognition in this system, and register the operators. After registration, please press the operator entry confirmation button."

[0038] Audio recording module: used to start the recording device to collect environmental audio data when it senses the approach of operators, so as to track and trace the operation process.

[0039] Face recognition module: used to perform face recognition on the sensed operator and determine whether the operator belongs to the operator system database. If so, it is determined whether there is entry confirmation information. If not, it generates the operator entry prompt operation information (asking the operator to click the "operator entry confirmation" button on the touch screen); if so, it generates the operator departure prompt operation information (asking the operator to click the "operator departure confirmation" button on the touch screen);

[0040] Real-time monitoring management module: when receiving information feedback of entry prompt operation information (for example, data feedback after clicking the "personnel entry confirmation" button on the touch screen), it is used to obtain the environmental gas data of the limited space from the mobile limited space operation alarm device in real time, and after detecting abnormal environmental gas data, the preset second alarm prompt information is continuously broadcast by voice through the voice broadcast module; it is also used to turn off the recording device when receiving information feedback of leaving prompt operation information, and organize the environmental audio data, environmental gas data, face recognition data, entry confirmation information and leaving confirmation information as work record data. Through the work record data, the operating personnel can be effectively recorded to form work record data, their operation information can be accurately registered, their entry and exit information can be checked, and the operation process can be tracked and traced. It provides an intelligent management method for limited space operation management, breaks the traditional operation management registration method, and realizes the intelligent, smart and digital management of limited space operations. It can effectively prevent the occurrence of safety accidents in limited space operations and effectively protect the life and property safety of operators.

[0041] Timing management module: when receiving the information feedback of the entry prompt operation information (after clicking the "Confirm Entry" button on the touch screen), countdown is performed according to the preset countdown parameters, and the operator is reminded according to the preset interval time. For example, it is set to 30 seconds, and the time starting point is the time when the infrared sensor approaches. By reminding, it avoids the possibility of accidents caused by operators ignoring, thereby ensuring the safety of confined space operations. The interval time is, for example, a reminder every 5 minutes, the reminder duration is 30 seconds, and the reminder content is, for example: "You have entered the confined space for more than 5 minutes, please pay attention to safety, please always pay attention to the monitoring gas concentration, and if you feel uncomfortable, please stop working immediately."

[0042] Positioning management module: used to obtain the first positioning information of the mobile confined space operation alarm device in real time when receiving information feedback of the entry prompt operation information, and analyze and calculate the relative position information of the mobile confined space operation alarm device and the fixed confined space operation alarm device according to the second positioning information of the fixed confined space operation alarm device; and also used to update and display the relative position information on the fixed confined space operation alarm device in real time.

[0043] Parameter adjustment module: used to obtain the parameter adjustment requirements of the current operator when it is determined that the operator belongs to the operator system library (in this embodiment, the parameter adjustment interface is directly displayed on the touch screen so that the operator can set it freely), and adjust the corresponding countdown parameters, interval time and alarm level response thresholds of each environmental parameter in the ambient gas data according to the parameter adjustment requirements.

[0044] The controller is electrically connected to a plurality of external speakers, and in this embodiment, two wired external speakers are provided. The voice broadcast module includes two built-in speakers;

[0045] Speaker controller management module: used to number external speakers and built-in speakers, and set the start and stop and volume of external speakers and built-in speakers according to the parameter adjustment requirements of operators. For example, external speaker 1, external speaker 2, built-in speaker 1, built-in speaker 2; the volume can be adjusted freely, and external speaker 1, external speaker 2, built-in speaker 1, and built-in speaker 2 can be freely combined and adjusted to start, so that the first alarm prompt information and the second alarm prompt information can be broadcast as required to ensure the life safety of operators in limited spaces.

[0046] The fixed confined space operation alarm device is basically as follows at the hardware level: Figure 2 , Figure 3 As shown, it includes a base 5, and the side surface of the base 5 is a right-angled trapezoid. In this embodiment, the upper surface where the waist is located is an upward convex arc surface, which has a beautiful structure and is not easy to condense water vapor.

[0047] The base 5 is provided with a columnar housing 1, the upper surface of which is tilted forward and is provided with a touch screen 2 and a camera, and the side surface of the columnar housing 1 is also a right-angled trapezoid. In this embodiment, the upper surface where the waist is located is provided with a touch screen 2 and a camera, the front side surface where the upper bottom is located is a concave arc surface, and the rear side surface where the upper bottom is located is provided with an openable and closable cabinet door 7, and the cabinet door 7 is provided with a door lock.

[0048] The columnar housing 1 is provided with a controller, a communication module connected to the mobile limited space operation alarm device, an infrared detection module for detecting the approach of personnel, and a voice alarm module for issuing voice alarm prompt information. The touch display screen 2, the communication module, the infrared detection module and the voice alarm module are all electrically connected to the controller. The communication module adopts a 4G communication module. Compared with Bluetooth, the communication connection is more stable and reliable in a limited space.

[0049] An opening for exposing the infrared detection module is provided at the bottom of the front side surface (concave arc surface) of the columnar housing 1, and a cover body 4 for covering the external detection sensor is provided outside the opening.

[0050] The upper part of both sides of the columnar shell 1 is provided with a number of regularly distributed sound outlet holes 3. The position of the sound outlet holes 3 corresponds to the position of the voice alarm module. The voice alarm module is essentially a speaker. In order to increase the volume or expand the voice broadcast range, an external speaker can be installed on the columnar shell 1, and the external speaker is detachably fixed by an existing hook. Or it can be fixed to other buildings by hot melt glue or nails. The cabinet door 7 is provided with a connection hole 6 for the wire of the external speaker to be electrically connected to the internal controller.

[0051] The controller comprises a timing module, and the timing module is used to send a high-level electrical signal to the controller after the timing ends.

[0052] The controller uses a conventional 51 single-chip microcomputer or a stem32 single-chip microcomputer, and the timing function of the timing module is built-in in the 51 single-chip microcomputer or the stem32 single-chip microcomputer. The remaining functional modules are used as conventional peripheral circuits of the controller.

[0053] Embodiment 2

[0054] The reference numerals in the accompanying drawings of the specification corresponding to the second embodiment include: a portable housing 1 , a touch display screen 2 , a sound outlet 3 , a vent 4 , and a hook 5 .

[0055] A mobile limited space operation alarm device, basically as Figure 4 , Figure 5 As shown, it includes a portable housing 1, and the outer back (rear side) of the portable housing 1 is provided with a hanging buckle 5, which is in the shape of a horizontal hook and can be stably hung on the belt of the operator. The portable housing 1 is internally provided with a controller, a positioning module, a touch display screen 2, a power module, a recording function module, a communication module for real-time communication with an external smart device, a gas detection module for detecting the concentration of toxic and harmful gases in the gas around the operator, and a voice alarm module for issuing voice alarm prompt information. In this embodiment, the portable housing 1 is in the shape of an elongated cube, and its size is similar to that of a conventional 6-7 inch smart phone.

[0056] The touch display screen 2 is arranged on the upper half of the positive outer surface of the portable housing 1. The recording function module is an existing microphone for collecting voice information of the operator, and the lower surface of the portable housing 1 is connected to the opening of the microphone. The voice alarm module is a conventional speaker. A plurality of sound outlet holes 3 are arranged on the lower half of the positive outer surface of the portable housing 1, and correspond to the positions of the speakers.

[0057] The gas detection module includes an oxygen concentration detection sensor, a hydrogen sulfide concentration detection sensor, a carbon monoxide concentration detection sensor, and a methane concentration detection sensor. The left and right sides of the portable housing 1 are provided with vents 4, and the oxygen concentration detection sensor, the hydrogen sulfide concentration detection sensor, the carbon monoxide concentration detection sensor, and the methane concentration detection sensor are separately arranged in pairs on the left and right. For example, the oxygen concentration detection sensor and the hydrogen sulfide concentration detection sensor are arranged on the left, and the carbon monoxide concentration detection sensor and the methane concentration detection sensor are arranged on the right.

[0058] The communication module adopts a 4G communication module. Compared with Bluetooth, the communication connection is more stable and reliable in a limited space.

[0059] The positioning module adopts a GPS positioning module or a Beidou positioning module. In this embodiment, a GPS positioning module is adopted.

[0060] The power module adopts conventional lithium-ion batteries and charging circuit modules, and can be charged and used repeatedly.

[0061] The controller comprises a timing module, and the timing module is used to send a high-level electrical signal to the controller after the timing ends.

[0062] The controller adopts a conventional 51 single-chip microcomputer or stem32 single-chip microcomputer, and the above functional modules serve as the peripheral circuits of the controller.

[0063] The touch display screen 2, communication module, voice alarm module, recording function module, oxygen concentration detection sensor, hydrogen sulfide concentration detection sensor, carbon monoxide concentration detection sensor and methane concentration detection sensor are all electrically connected to the controller.

[0064] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is described too much here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can know all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An intelligent management system for safe operation in confined spaces, characterized by: The invention comprises a mobile confined space operation alarm device and a fixed confined space operation alarm device connected in communication, wherein the fixed confined space operation alarm device comprises a device body and a controller, and the controller comprises the following modules: Infrared sensing module: used to sense whether the operator is approaching; Voice broadcast module: used to voice broadcast the preset first alarm prompt information when sensing the approach of the operator; Audio recording module: used to start the recording device to collect environmental audio data when it senses that a worker is approaching; Face recognition module: used to perform face recognition on the sensed operator and determine whether the operator belongs to the operator system database. If so, it is determined whether there is entry confirmation information. If not, it generates the operator entry prompt operation information. If so, it generates the operator departure prompt operation information. Real-time monitoring management module: used to obtain environmental gas data of the confined space from the mobile confined space operation alarm device in real time when receiving information feedback of the entry prompt operation information, and continuously voice broadcast the preset second alarm prompt information through the voice broadcast module after detecting abnormal environmental gas data; also used to turn off the recording device when receiving information feedback of the exit prompt operation information, and organize the environmental audio data, environmental gas data, face recognition data, entry confirmation information and exit confirmation information as work record data; Timing management module: when receiving information feedback of entry prompt operation information, countdown is performed according to preset countdown parameters, and operators are reminded according to preset interval time; Positioning management module: used to obtain the first positioning information of the mobile confined space operation alarm device in real time when receiving the information feedback of the entry prompt operation information, and analyze and calculate the relative position information of the mobile confined space operation alarm device and the fixed confined space operation alarm device according to the second positioning information of the fixed confined space operation alarm device; and also used to update and display the relative position information on the fixed confined space operation alarm device in real time; Parameter adjustment module: used to obtain the parameter adjustment requirements of the current operator when it is determined that the operator belongs to the operator system library, and adjust the corresponding countdown parameters, interval time and alarm level response thresholds of various environmental parameters in the environmental gas data according to the parameter adjustment requirements; The controller is electrically connected to a plurality of external speakers, the voice broadcast module includes a built-in speaker, and the controller also includes the following modules: Speaker controller management module: used to number external speakers and built-in speakers, and set the start and stop and volume of external speakers and built-in speakers according to the operator's parameter adjustment requirements; The device body comprises a base, a columnar shell is provided on the base, a touch screen and a camera are installed on the upper surface of the columnar shell which is tilted forward, a controller, a communication module connected to the mobile limited space operation alarm device, an infrared detection module for detecting the approach of personnel, and a voice alarm module for issuing voice alarm prompt information are arranged inside the columnar shell, and the touch screen, communication module, infrared detection module and voice alarm module are all electrically connected to the controller; The mobile confined space operation alarm device includes a portable shell, a hanging buckle is provided on the outer back of the portable shell, and a controller, a positioning module, a touch display screen, a communication module for real-time communication with an external smart device, a gas detection module for detecting the concentration of toxic and harmful gases in the gas around the operator, and a voice alarm module for issuing voice alarm prompt information are arranged inside the portable shell. The touch display screen, positioning module, communication module, gas detection module and voice alarm module are electrically connected.

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