CN111413915A - Safety interlocking control device, system and method - Google Patents
Safety interlocking control device, system and method Download PDFInfo
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- CN111413915A CN111413915A CN201910007947.8A CN201910007947A CN111413915A CN 111413915 A CN111413915 A CN 111413915A CN 201910007947 A CN201910007947 A CN 201910007947A CN 111413915 A CN111413915 A CN 111413915A
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
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Abstract
The invention provides a safety interlocking control device, a system and a method thereof, relating to the technical field of safety control.A detection device collects the content of a preset amount of harmful substances to enter a place and sends the content of the preset amount of harmful substances to a controller; calculating to obtain the average content of the harmful substances to enter the interior of the site according to the content of the preset quantity of the harmful substances; the controller judges whether the average content of the harmful substances exceeds a preset safety threshold, if not, the locking mechanism is controlled to be in a release state so that the place to be entered is in a normal entering and exiting state, and if the average content of the harmful substances exceeds the preset safety threshold, the locking mechanism is controlled to close an entrance of the place to be entered, so that the safety of entering personnel is fully protected without manual detection.
Description
Technical Field
The invention relates to the technical field of safety control, in particular to a safety interlocking control device, a safety interlocking control system and a safety interlocking control method.
Background
With the increase of population density, collective accidents of crowd death and crowd injury frequently occur in places with high-concentration harmful substances and high-risk substances, for example, sulfur dioxide toxic gas leakage occurs when a drill encounters a sulfur dioxide stratum in the oil field drilling process, and the sulfur dioxide concentration reaches 500ppm, so that the collective accidents can seriously threaten the life health of people. For another example, in the cleaning and maintenance process of the reaction kettle of the chemical plant, people may need to enter the closed space, and harmful substances such as toxic gas may exist in the reaction kettle, so that the inhalation of the toxic gas may cause dizziness, nausea, vomiting, coma and the like, so that the life may be seriously threatened, and the colorless and tasteless toxic gas cannot be perceived, so that the body may be greatly injured by careless inhalation; particularly, in some special industrial production, a large amount of toxic substances are contained, toxic gases are released, and many toxic gases are colorless and tasteless, cannot be found in time by people and are easy to cause tragedy.
Currently, in order to control people to safely enter dangerous places, warning signs are pasted at eye-catching positions of the places, whether the environment in the places is in a safe state or not is detected when the people enter the dangerous places, and the people enter the dangerous places after the environment is determined to be safe.
However, the inventor finds that the existing method for controlling people to safely enter the dangerous places has the following technical problems: the warning mark is invalid due to the fact that the warning mark can be polluted, damaged or shielded, and people entering the dangerous place directly enter the dangerous place; in addition, some entering personnel directly enter the site according to experience and self-thought of safety in order to save the detection step; this poses a serious threat to the safety of the entering personnel and cannot achieve the purpose of protecting the personnel safely.
Disclosure of Invention
In view of the foregoing problems, embodiments of the present invention provide a safety interlock control device, a system and a method thereof, which can automatically detect a safety state of a dangerous place, control a person to enter the dangerous place in a dangerous manner, and protect the safety of the person entering the dangerous place.
In order to achieve the above purpose, the invention provides the following technical scheme:
a first aspect of the invention provides a safety interlock control device including:
a plurality of detection devices, a controller, and a lockout mechanism;
the detection devices are arranged at preset positions inside a place to be entered and are used for detecting the content of harmful substances inside the place to be entered; the locking mechanism is arranged at an inlet of the field to be entered and is used for controlling the opening and closing of the inlet of the field to be entered;
the input end of the controller is respectively connected with each detection device, and the output end of the controller is respectively connected with the locking mechanism;
the detection equipment acquires the content of the harmful substances in a preset quantity in the place to be entered, and sends the content of the harmful substances in the preset quantity to the controller; calculating to obtain the average content of the harmful substances to enter the site according to the content of the preset quantity of the harmful substances;
the controller judges whether the average content of the harmful substances exceeds a preset safety threshold, if not, the locking mechanism is controlled to be in a release state so that the place to be entered is in a normal entering and exiting state, and if the average content of the harmful substances exceeds the preset safety threshold, the locking mechanism is controlled to close an entrance of the place to be entered.
Optionally, the apparatus further comprises:
an alert device;
the warning equipment is connected with the output end of the controller;
and the controller sends an alarm prompt to the warning equipment when the average content of the harmful substances exceeds a preset safety threshold value and controls the locking mechanism to close the entrance of the place to be entered.
Optionally, the warning device is at least any one of a buzzer alarm, an audible and visual alarm or a vibration alarm.
Optionally, the detection device is a harmful gas concentration sensor.
Optionally, the apparatus further comprises:
the foam generating equipment is arranged at an inlet and an outlet of the place to be entered, and is connected with the controller;
and when the controller judges that the average content of the harmful substances exceeds a preset safety threshold value, controlling the foam generating device to spray foam so as to delay the personnel trying to enter the place to be entered.
Optionally, the foam generating apparatus comprises:
a foam generator, an ejector, a raw material reservoir and a proximity sensor;
the foam generator, the ejector, the raw material storage and the proximity induction sensor are all connected with the controller
The proximity sensor is used for generating a trigger signal and sending the trigger signal to the controller when sensing that a person exists in a preset range at an entrance of the place to be entered;
the controller controls the foam generator to convert the foam material in the raw material storage into foam, and controls the ejector to eject the converted foam at a preset rate.
Optionally, the apparatus further comprises:
a biometric identification device;
the biological characteristic recognition device is connected with the controller;
the biological characteristic identification equipment acquires biological characteristic information of maintenance personnel and matches the biological characteristics with a plurality of groups of prestored biological characteristics; if the matching is successful, a matching success signal is sent to the controller;
the controller controls the locking mechanism to be in a release state according to the matching success signal, so that the place to be entered is in a normal entering and exiting state, and the maintenance personnel enter the place to be entered for maintenance treatment.
Optionally, the biometric device is:
any one of a finger vein information acquisition instrument, a palm vein information acquisition instrument, a face image acquisition instrument or an iris acquisition instrument.
A second aspect of an embodiment of the present invention provides a safety interlock control system, including: a central server, a plurality of network devices, and a plurality of safety interlock control devices according to any one of the first aspect, wherein the central server is connected to each safety interlock control device through each network device.
A third aspect of an embodiment of the present invention provides a safety interlock control method for a safety interlock control system, where the system includes a plurality of detection devices, a controller, and a locking mechanism; the detection devices are arranged at preset positions inside a place to be entered and are used for detecting the content of harmful substances inside the place to be entered; the locking mechanism is arranged at an inlet of the field to be entered and is used for controlling the opening and closing of the inlet of the field to be entered; the input end of the controller is respectively connected with each detection device, and the output end of the controller is respectively connected with the locking mechanism;
the method comprises the following steps:
the detection equipment acquires the content of the harmful substances in a preset quantity in the place to be entered, and sends the content of the harmful substances in the preset quantity to the controller; calculating to obtain the average content of the harmful substances to enter the site according to the content of the preset quantity of the harmful substances;
the controller judges whether the average content of the harmful substances exceeds a preset safety threshold, if not, the locking mechanism is controlled to be in a release state so that the place to be entered is in a normal entering and exiting state, and if the average content of the harmful substances exceeds the preset safety threshold, the locking mechanism is controlled to close an entrance of the place to be entered.
Compared with the prior art, the device, the system and the method provided by the embodiment of the invention have the following advantages: the embodiment of the invention comprises a plurality of detection devices, a controller and a locking mechanism; the detection devices are arranged at preset positions inside a place to be entered and are used for detecting the content of harmful substances inside the place to be entered; the locking mechanism is arranged at an inlet of the field to be entered and is used for controlling the opening and closing of the inlet of the field to be entered; the input end of the controller is respectively connected with each detection device, and the output end of the controller is respectively connected with the locking mechanism; the detection equipment acquires the content of the harmful substances in a preset quantity in the place to be entered, and sends the content of the harmful substances in the preset quantity to the controller; calculating to obtain the average content of the harmful substances to enter the site according to the content of the preset quantity of the harmful substances; the controller judges whether the average content of the harmful substances exceeds a preset safety threshold, if not, the locking mechanism is controlled to be in a release state so that the place to be entered is in a normal entering and exiting state, and if the average content of the harmful substances exceeds the preset safety threshold, the locking mechanism is controlled to close an entrance of the place to be entered. The embodiment of the invention can automatically detect the safety state of the dangerous place and control personnel to enter the dangerous place through the detection equipment, the controller and the locking mechanism without manual detection, and can prevent the personnel from directly entering the dangerous place by self-thinking of safety in the place through experience in order to save the detection step, thereby fully protecting the safety of the personnel entering the dangerous place.
In addition to the technical problems solved by the embodiments of the present invention, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions, other technical problems solved by the safety interlock control device, the safety interlock control system, and the safety interlock control method according to the embodiments of the present invention, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail in the detailed description.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a safety interlock control device according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a safety interlock control device according to another embodiment of the present invention;
FIG. 3 is a schematic structural view of a safety interlock control device according to another embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a foam generating apparatus according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a safety interlock control device according to yet another embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a safety interlock control system according to an embodiment of the present invention;
fig. 7 is a flowchart illustrating a safety interlock control method according to an embodiment of the present invention.
Description of reference numerals:
safety interlock control device-100
Detection device-10
Controller-20
Locking mechanism-30
Warning device-40
Foam generating apparatus-50
Foam generator-501
Injector-502
Raw material storage-503
Proximity inductive sensor-504
Biometric recognition device-60
Central server-200
Network device-300
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "plurality" or "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a safety interlock control device according to an embodiment of the present invention. In this embodiment, the safety interlock control apparatus 100 specifically includes:
a plurality of detection devices 10, a controller 20, and a locking mechanism 30;
a plurality of detection devices 10 are provided at preset positions inside the site to be entered, for detecting the content of harmful substances to be entered inside the site; a locking mechanism 30 is provided at the entrance of the site to be entered for controlling opening and closing of the entrance of the site to be entered.
The input terminals of the controller 20 are connected to the respective detecting devices 10, and the output terminals of the controller 20 are connected to the locking mechanisms 30.
The detection device 10 collects the content of the harmful substances in a preset amount inside the site to be entered, and sends the content of the harmful substances in the preset amount to the controller 20; and calculating to obtain the average content of the harmful substances to enter the interior of the site according to the content of the preset quantity of the harmful substances.
The controller 20 determines whether the average content of the harmful substances exceeds a preset safety threshold, controls the locking mechanism 30 to be in a release state if the average content of the harmful substances does not exceed the preset safety threshold, so that the site to be entered is in a normal entry and exit state, and controls the locking mechanism 30 to close the entrance of the site to be entered if the average content of the harmful substances exceeds the preset safety threshold.
It should be noted that: the site to be accessed may be an enclosed site or a non-enclosed site. For example, the location to be accessed may be a reaction vessel of a chemical plant, and the locking mechanism 30 is an actuator that controls the inlet of the reaction vessel. For example, the location to be accessed may be a plant for storing sulphur dioxide, and the locking mechanism 30 is an actuator controlling the entrance to the plant.
The locking mechanism 30 may be composed of a motor and a sliding door, the motor is connected to the controller 100, and the motor controls the sliding door to open or close.
The detection device 10 may be a harmful gas concentration sensor. Preferably, the detection device 10 is a harmful gas concentration sensor. For example, when the site to be entered is a workshop for storing sulfur dioxide, then the detection device 10 is a sulfur dioxide concentration sensor.
The Controller 20 may be a single chip, a Micro Controller Unit (MCU) or a Programmable logic Controller (Programmable L g Controller, P L C).
The safety interlock control apparatus 100 of the present embodiment includes a plurality of detection devices, a controller, a locking mechanism; the detection devices are arranged at preset positions inside a place to be entered and are used for detecting the content of harmful substances inside the place to be entered; the locking mechanism is arranged at an inlet of the field to be entered and is used for controlling the opening and closing of the inlet of the field to be entered; the input end of the controller is respectively connected with each detection device, and the output end of the controller is respectively connected with the locking mechanism; the detection equipment acquires the content of the harmful substances in a preset quantity in the place to be entered, and sends the content of the harmful substances in the preset quantity to the controller; calculating to obtain the average content of the harmful substances to enter the site according to the content of the preset quantity of the harmful substances; the controller judges whether the average content of the harmful substances exceeds a preset safety threshold, if not, the locking mechanism is controlled to be in a release state so that the place to be entered is in a normal entering and exiting state, and if the average content of the harmful substances exceeds the preset safety threshold, the locking mechanism is controlled to close an entrance of the place to be entered. The embodiment of the invention can automatically detect the safety state of the dangerous place and control personnel to enter the dangerous place through the detection equipment, the controller and the locking mechanism without manual detection, and can prevent the personnel from directly entering the dangerous place by self-thinking of safety in the place through experience in order to save the detection step, thereby fully protecting the safety of the personnel entering the dangerous place.
Referring to FIG. 2, FIG. 2 is a schematic structural view of a safety interlock control device according to another embodiment of the present invention. On the basis of the embodiment of fig. 1, the safety interlock control apparatus 100 may further include:
an alert device 40;
the warning device 40 is connected with the output end of the controller 20;
the controller 40 sends an alarm prompt to the warning device 40 when the average content of the harmful substances exceeds a preset safety threshold and controls the locking mechanism to close the entrance of the place to be entered.
Wherein, the warning device 40 is at least one of a buzzer alarm, a sound-light alarm or a vibration alarm.
This embodiment safety interlock controlling means can surpass preset safety threshold at the average content of harmful substance through alarm device, and alarm device sends the warning suggestion, and warning personnel do not need to get into dangerous place, reaches obvious warning effect.
Referring to FIG. 3, FIG. 3 is a schematic structural view of a safety interlock control device according to another embodiment of the present invention. On the basis of the embodiment of fig. 1, the safety interlock control apparatus 100 may further include:
a foam generating device 50 provided at an entrance/exit of a place to be entered, the foam generating device 50 being connected to the controller 20;
when the controller 20 determines that the average content of harmful substances exceeds a preset safety threshold, the foam generating device 50 is controlled to emit foam to delay attempts to enter the person to enter the site.
Specifically, referring to fig. 4, fig. 4 is a schematic structural diagram of a foam generating device according to an embodiment of the present invention, where the foam generating device 50 in this embodiment includes:
a foam generator 501, an ejector 502, a raw material storage 503, and a proximity sensor 504;
the foam generator 501, the sprayer 502, the raw material storage 503 and the proximity sensor 504 are all connected with the controller 20;
the proximity sensor 504 generates a trigger signal to be sent to the controller 200 when sensing that a person exists in a preset range at an entrance of a place to be entered;
the controller 200 controls the foam generator 501 to convert the foam material in the raw material storage into foam, and controls the ejector to eject the converted foam at a preset rate.
The foam generator 501 may generate viscous foam, which may be rapidly coagulated into a semi-solid state after being sprayed out, and may stick people nearby and lose mobility.
The ejector 502 may be a fan for blowing out the foam generated by the foam generator 501.
The raw material storage 503 may be any container for storing the foam raw material, and the present invention is not limited thereto.
The proximity sensor 504 may be an infrared imaging device or a general camera for detecting whether a person exists within a preset range at an entrance of a site to be entered.
As can be seen from the above examples, the safety interlock control device of the present embodiment can further delay the time of the personnel trying to enter the site to be entered through the foam generating device, so as to ensure the safety of the personnel.
Referring to FIG. 5, FIG. 5 is a schematic structural diagram of a safety interlock control device according to yet another embodiment of the present invention. On the basis of the embodiment of fig. 1, the safety interlock control apparatus 100 may further include:
a biometric identification device 60;
the biometric identification device 60 is connected to the controller 20;
the biometric recognition device 60 collects biometric information of the maintenance personnel and matches the biometric information with a plurality of sets of pre-stored biometric information; if the matching is successful, sending a matching success signal to the controller 20;
the controller 20 controls the locking mechanism to be in a release state according to the matching success signal, so that the place to be entered is in a normal entering and exiting state, and the maintenance personnel enters the place to be entered for maintenance treatment.
The biometric device 60 may be any one of a vein information acquisition instrument, a palm vein information acquisition instrument, a face image acquisition instrument, or an iris acquisition instrument.
As can be seen from the above embodiments, the safety interlock control apparatus of the present embodiment can only allow a maintenance person to enter the site to be entered to perform maintenance processing by the biometric identification device.
In one embodiment of the invention, after the locking mechanism closes the entrance to the location to be accessed, a higher level of authorization and safeguards are required to gain access to the location to be accessed for maintenance.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a safety interlock control system according to an embodiment of the present invention. The safety interlock control system of the present embodiment includes: a central server 200, a plurality of network devices 300, and a plurality of safety interlock control devices 100 provided in any one of the embodiments of fig. 1 to 4, wherein the central server 200 is connected to each safety interlock control device 100 through each network device 300.
In the embodiment, a plurality of safety interlocking control devices can be jointly controlled through the central server, so that centralized management is facilitated.
Referring to fig. 7, fig. 7 is a flowchart illustrating a safety interlock control method according to an embodiment of the present invention. The safety interlock control method of the present embodiment may be used in a safety interlock control system including a plurality of detection devices, a controller, and a lockout mechanism; the detection devices are arranged at preset positions inside a place to be entered and are used for detecting the content of harmful substances inside the place to be entered; the locking mechanism is arranged at an inlet of the field to be entered and is used for controlling the opening and closing of the inlet of the field to be entered; the input end of the controller is respectively connected with each detection device, and the output end of the controller is respectively connected with the locking mechanism;
the safety interlock control method of the present embodiment may include:
s601: the detection equipment collects the content of the harmful substances of the preset quantity in the place to be entered, and sends the content of the harmful substances of the preset quantity to the controller.
S602: and the controller calculates the average content of the harmful substances to enter the site according to the content of the preset quantity of the harmful substances.
S603: the controller judges whether the average content of the harmful substances exceeds a preset safety threshold.
S604: and if the average content of the harmful substances does not exceed a preset safety threshold, the controller controls the locking mechanism to be in a release state, so that the place to be entered is in a normal entering and exiting state.
S605: and if the average content of the harmful substances exceeds a preset safety threshold value, the controller controls the locking mechanism to close the entrance of the place to be entered.
As can be seen from the above embodiment, the detection device collects the content of the harmful substances in the preset amount in the to-be-entered place, and sends the content of the harmful substances in the preset amount to the controller; calculating to obtain the average content of the harmful substances to enter the site according to the content of the preset quantity of the harmful substances; the controller judges whether the average content of the harmful substances exceeds a preset safety threshold, if not, the locking mechanism is controlled to be in a release state so that the place to be entered is in a normal entering and exiting state, and if the average content of the harmful substances exceeds the preset safety threshold, the locking mechanism is controlled to close an entrance of the place to be entered. The embodiment of the invention can automatically detect the safety state of the dangerous place and control personnel to enter the dangerous place through the detection equipment, the controller and the locking mechanism without manual detection, and can prevent the personnel from directly entering the dangerous place by self-thinking of safety in the place through experience in order to save the detection step, thereby fully protecting the safety of the personnel entering the dangerous place.
The embodiments or implementation modes in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A safety interlock control device, comprising:
a plurality of detection devices, a controller, and a lockout mechanism;
the detection devices are arranged at preset positions inside a place to be entered and are used for detecting the content of harmful substances inside the place to be entered; the locking mechanism is arranged at an inlet of the field to be entered and is used for controlling the opening and closing of the inlet of the field to be entered;
the input end of the controller is respectively connected with each detection device, and the output end of the controller is respectively connected with the locking mechanism;
the detection equipment acquires the content of the harmful substances in a preset quantity in the place to be entered, and sends the content of the harmful substances in the preset quantity to the controller; calculating to obtain the average content of the harmful substances to enter the site according to the content of the preset quantity of the harmful substances;
the controller judges whether the average content of the harmful substances exceeds a preset safety threshold, if not, the locking mechanism is controlled to be in a release state so that the place to be entered is in a normal entering and exiting state, and if the average content of the harmful substances exceeds the preset safety threshold, the locking mechanism is controlled to close an entrance of the place to be entered.
2. The safety interlock control device of claim 1 further comprising:
an alert device;
the warning equipment is connected with the output end of the controller;
and the controller sends an alarm prompt to the warning equipment when the average content of the harmful substances exceeds a preset safety threshold value and controls the locking mechanism to close the entrance of the place to be entered.
3. The safety interlock control of claim 2, wherein the warning device is at least any one of a buzzer alarm, a sound and light alarm, or a vibratory alarm.
4. The safety interlock control device of claim 1 wherein the sensing device is a harmful gas concentration sensor.
5. The safety interlock control device of claim 1 further comprising:
the foam generating equipment is arranged at an inlet and an outlet of the place to be entered, and is connected with the controller;
and when the controller judges that the average content of the harmful substances exceeds a preset safety threshold value, controlling the foam generating device to spray foam so as to delay the personnel trying to enter the place to be entered.
6. The safety interlock control of claim 5 wherein the foam generating device comprises:
a foam generator, an ejector, a raw material reservoir and a proximity sensor;
the foam generator, the ejector, the raw material storage and the proximity induction sensor are all connected with the controller;
the proximity sensor is used for generating a trigger signal and sending the trigger signal to the controller when sensing that a person exists in a preset range at an entrance of the place to be entered;
the controller controls the foam generator to convert the foam material in the raw material storage into foam, and controls the ejector to eject the converted foam at a preset rate.
7. The safety interlock control device of claim 1 further comprising:
a biometric identification device;
the biological characteristic recognition device is connected with the controller;
the biological characteristic identification equipment acquires biological characteristic information of maintenance personnel and matches the biological characteristics with a plurality of groups of prestored biological characteristics; if the matching is successful, a matching success signal is sent to the controller;
the controller controls the locking mechanism to be in a release state according to the matching success signal, so that the place to be entered is in a normal entering and exiting state, and the maintenance personnel enter the place to be entered for maintenance treatment.
8. The safety interlock control device of any one of claims 1 to 7 wherein the biometric identification device is:
any one of a finger vein information acquisition instrument, a palm vein information acquisition instrument, a face image acquisition instrument or an iris acquisition instrument.
9. A safety interlock control system, comprising: a central server, a plurality of network devices, and a plurality of safety interlock control devices according to any one of claims 1 to 8, the central server being connected to each safety interlock control device via each network device.
10. A safety interlock control method for a safety interlock control system, the system including a plurality of detection devices, a controller, and a lockout mechanism; the detection devices are arranged at preset positions inside a place to be entered and are used for detecting the content of harmful substances inside the place to be entered; the locking mechanism is arranged at an inlet of the field to be entered and is used for controlling the opening and closing of the inlet of the field to be entered; the input end of the controller is respectively connected with each detection device, and the output end of the controller is respectively connected with the locking mechanism;
the method comprises the following steps:
the detection equipment acquires the content of the harmful substances in a preset quantity in the place to be entered, and sends the content of the harmful substances in the preset quantity to the controller;
the controller calculates the average content of the harmful substances to enter the site according to the content of the preset quantity of the harmful substances;
the controller judges whether the average content of the harmful substances exceeds a preset safety threshold value;
if the average content of the harmful substances does not exceed a preset safety threshold, the controller controls the locking mechanism to be in a release state, so that the place to be entered is in a normal entering and exiting state;
and if the average content of the harmful substances exceeds a preset safety threshold value, the controller controls the locking mechanism to close the entrance of the place to be entered.
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| CN201910007947.8A CN111413915A (en) | 2019-01-04 | 2019-01-04 | Safety interlocking control device, system and method |
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| CN113886785A (en) * | 2021-12-07 | 2022-01-04 | 德阳得瑞宝防爆科技有限公司 | Active safety auxiliary method, device and medium for petroleum drilling driller control system |
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| CN113886785B (en) * | 2021-12-07 | 2022-03-01 | 德阳得瑞宝防爆科技有限公司 | Active safety auxiliary method, device and medium for petroleum drilling driller control system |
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