CN110992665A - Safety protection method for operation of mining mechanical equipment - Google Patents
Safety protection method for operation of mining mechanical equipmentDownload PDFInfo
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- CN110992665A CN110992665ACN201911267474.1ACN201911267474ACN110992665ACN 110992665 ACN110992665 ACN 110992665ACN 201911267474 ACN201911267474 ACN 201911267474ACN 110992665 ACN110992665 ACN 110992665A
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/48—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for in-vehicle communication
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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Abstract
Description
Technical Field
The application relates to the technical field of wireless remote control of underground mining mechanical equipment, in particular to a safety protection method for operation of the mining mechanical equipment.
Background
When the equipment is in an emergency, the remote control system of the underground scraper in the prior art is usually used for controlling a flameout function through an emergency stop switch so as to realize the effect of emergency braking. The remote control system is only responsible for sending and receiving of signals, has no self-checking function and misoperation prevention function, has no emergency measure when the remote control system breaks down or is powered off, can not release the control of braking when the scraper needs to pull a trailer, and completely depends on manual judgment.
Since a state check that the remote operation unit establishes a link condition with the in-vehicle unit is absent in the remote control system in the prior art, there are some safety concerns. For example, when a remote control unit has an input of motion, it may cause the scraper to directly output the motion, thereby posing a security threat. In addition, in the remote control system in the prior art, emergency measures under the condition that the remote control operation unit suddenly breaks down or is powered off are not considered, and if the remote control operation unit breaks down, the emergency measures can be solved only by means of manual intervention, so that safety risks exist. In addition, the remote control system in the prior art has no relation to how to control the brake, how to deal with the misoperation and the like when the trailer is pulled. When the scraper is located in a dangerous area and needs to be towed after a fault occurs, the brake can not be released remotely, and the operation of releasing the brake can only be carried out on equipment manually, so that safety risks exist in personnel and equipment.
In conclusion, when the remote control system has problems or personnel misoperation occurs, safety accidents such as personnel injury or death, equipment scratch and damage and the like are easily caused.
Disclosure of Invention
In view of this, the invention provides a safety protection method for operation of mining mechanical equipment, so that the safety of operation of the mining mechanical equipment can be effectively improved.
The technical scheme of the invention is realized as follows:
a safety protection method for operation of mining machinery equipment comprises the following steps:
establishing a pairing relationship for each remote control operation unit and each vehicle-mounted receiving unit respectively, and configuring the same parameter information for the remote control operation units and the vehicle-mounted receiving units with the pairing relationship;
and the remote control operation unit and the vehicle-mounted receiving unit which have the pairing relation are subjected to state check before being electrified, and whether a link is established with a paired opposite end is determined according to a state check result.
Preferably, the determining whether to establish a link with the paired opposite end according to the status check result includes:
if the state checking results of the paired remote control operation unit and the paired vehicle-mounted receiving unit both accord with the preset link establishing condition, the paired remote control operation unit and the paired vehicle-mounted receiving unit establish a link; otherwise, the paired remote control operation unit and the vehicle-mounted receiving unit do not establish a link.
Preferably, the status check of the remote control unit before powering on, and determining whether to establish a link with the paired opposite end according to the status check result includes:
checking whether a parking brake control unit on a remote operation unit is in an applied state;
checking whether an accelerator control unit on the remote control operation unit is in an accelerator non-output state;
checking whether a handle on the remote control operation unit is in a middle position state;
checking whether a handle on the remote control operation unit is in a state of normal operation;
checking whether a service brake control unit on the remote control operation unit is in a release state;
checking whether an engine start control unit on the remote operation unit is in a non-applied state;
checking whether a delay shutdown switch on a remote control operation unit is in a non-applied state;
checking whether an emergency stop switch on the remote control operation unit is in a non-applied state;
checking whether a trailer switch on the remote operated unit is in an unapplied state;
if the checking results are yes, the remote control operation unit and the matched vehicle-mounted receiving unit are linked; otherwise, the remote control operation unit does not establish a link with the paired vehicle-mounted receiving unit.
Preferably, the performing, by the vehicle-mounted receiving unit, a status check before powering on, and determining whether to establish a link with the paired opposite end according to a status check result includes:
the vehicle-mounted receiving unit checks whether the remote control state of the mining mechanical equipment where the vehicle-mounted receiving unit is located is in an enabling state;
the vehicle-mounted receiving unit checks whether the parking brake state of the mining mechanical equipment where the vehicle-mounted receiving unit is located is in an enabling state;
the vehicle-mounted receiving unit checks whether the neutral gear state of the mining mechanical equipment where the vehicle-mounted receiving unit is located is in an enabling state;
if the checking results are yes, the vehicle-mounted receiving unit on the mining mechanical equipment is linked with the matched remote control operation unit; otherwise, the vehicle-mounted receiving unit does not establish a link with the paired remote operation unit.
Preferably, the method further comprises:
after the remote operation unit establishes a link with the paired on-board receiving unit, when the mining machine equipment fails, the trailer mode is started on the remote operation unit.
Preferably, the method further comprises:
after the remote control operation unit is linked with the matched vehicle-mounted receiving unit, when an emergency occurs, an emergency stop switch on the remote control operation unit is pressed, so that the remote control operation unit sends an emergency stop signal to the matched vehicle-mounted receiving unit, and the mining mechanical equipment is controlled to brake immediately.
Preferably, the method further comprises:
after the remote control operation unit establishes a link with the paired in-vehicle receiving unit:
when the operation state of the remote control operation unit is that the parking brake control unit is in an applied state, is not in a trailer mode and the delay shutdown switch is in an unapplied state, if the remote control operation unit is suddenly powered off, the paired vehicle-mounted receiving unit closes an engine of the mining mechanical equipment within preset power-off time;
when the operation state of the remote control operation unit is that the parking brake control unit is in an applied state, the remote control operation unit is not in a trailer mode, and the delayed shutdown switch is in an applied state, if the remote control operation unit is suddenly powered off, the paired vehicle-mounted receiving unit closes an engine of the mining mechanical equipment after preset delayed shutdown time;
when the remote control unit is operated in a parking brake control mode in which the parking brake control unit is in an applied state, the paired on-vehicle receiving unit always maintains the original output if the remote control unit is suddenly powered off.
Preferably, the method further comprises:
a tilt protection switch is arranged in the remote control operation unit;
after the remote control operation unit is linked with the paired vehicle-mounted receiving unit, when the remote control operation unit inclines or falls off, the remote control operation unit automatically enters a safe mode and sends a safe mode instruction to the paired vehicle-mounted receiving unit;
and the vehicle-mounted receiving unit sends a safety mode maintaining instruction to the mining mechanical equipment and reports a fault, an engine of the mining mechanical equipment is closed, parking brake and service brake are applied, and the mining mechanical equipment is switched to a neutral mode.
Preferably, a malfunction safety protection switch is arranged in the remote control operation unit.
Preferably, the method further comprises:
a delay flameout switch is arranged in the remote control operation unit;
after the remote control unit is linked with the paired in-vehicle receiving unit, in the case where the parking brake control unit of the remote control unit is in the applied state, when the delay key-off switch is pressed on the remote control unit and then the remote control unit is turned off, the paired in-vehicle receiving unit will control the engine of the mining mechanical equipment not to be turned off for a preset engine holding time.
Preferably, the method further comprises:
after the remote operation unit is linked with the paired vehicle-mounted receiving unit, when the mining mechanical equipment is in a vehicle-holding state for a preset time and an operation instruction is not received, the mining mechanical equipment automatically enters a safety mode.
Preferably, the method further comprises:
after the remote control operation unit is linked with the paired vehicle-mounted receiving unit, when the difference between the last flameout time of the mining mechanical equipment and the engine starting time of the mining mechanical equipment is smaller than a preset starting time interval, the engine of the mining mechanical equipment is not started.
As can be seen from the above, in the safety protection method for the operation of the mining mechanical equipment in the present invention, since the pairing relationship is respectively established for each remote control unit and the vehicle-mounted receiving unit, and the same parameter information is configured for the remote control unit and the vehicle-mounted receiving unit having the pairing relationship, it is possible to avoid mutual interference that may occur when a plurality of vehicle-mounted receiving units exist in the same radio frequency region, and it is also possible to avoid that a remote control signal of the remote control unit is erroneously transmitted to the vehicle-mounted receiving unit on another mining mechanical equipment, which results in a safety risk caused by outputting a related action. In addition, because each remote control operation unit and the vehicle-mounted receiving unit are subjected to state check before being electrified, and whether the link is established with the paired opposite end is determined according to the state check result, the link can be established only under the relatively safe condition of the remote control operation unit and the vehicle-mounted receiving unit, so that various safety risks can be effectively avoided, and the running safety of the mining mechanical equipment is effectively improved.
Drawings
Fig. 1 is a flowchart of a safety protection method for operation of mining mechanical equipment in an embodiment of the present invention.
FIG. 2 is a diagram illustrating a status check in an embodiment of the invention.
Detailed Description
In order to make the technical scheme and advantages of the invention more apparent, the invention is further described in detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a flowchart of a safety protection method for operation of mining mechanical equipment in an embodiment of the present invention.
As shown in fig. 1, the safety protection method for the operation of the mining machinery equipment in the embodiment of the present invention includes the following steps:
and 11, establishing a pairing relationship for each remote control operation unit and each vehicle-mounted receiving unit respectively, and configuring the same parameter information for the remote control operation unit and the vehicle-mounted receiving unit with the pairing relationship.
In the solution of the present invention, the remote control unit is typically located at a remote control end, and the on-board receiving unit is typically located at a mining machine (e.g., a scraper). The remote control unit (OU) and the vehicle-mounted receiving unit (MU) need to be paired for use. Therefore, after the OU and the MU are set, corresponding pairing relationships may be established in advance for each OU and MU, and then the same parameter information may be configured for each OU and MU having a pairing relationship, that is, the parameter information is configured in a pairing manner. Only the OU and MU configured with the same parameter information (i.e., parameter information match) can be used normally.
After theabove step 11 is performed, if in the same radio frequency region, when one remote operation unit parameter information can be matched with the parameter information of a plurality of in-vehicle receiving units (i.e., the same parameter information is configured), for example, one remote operation unit is matched with the parameter information of a plurality of in-vehicle receiving units due to the occurrence of mis-configuration, the remote operation unit will not establish a link with any in-vehicle receiving unit where the parameter information matching occurs. That is, only if parameter information of one remote operation unit matches parameter information of only one in-vehicle receiving unit in the same radio frequency region, the remote operation unit can establish a link with the in-vehicle receiving unit whose parameter information matches.
Therefore, through theabove step 11, it is possible to avoid mutual interference that may occur when a plurality of vehicle-mounted receiving units exist in the same radio frequency region and the mining machine equipment is controlled by remote control. Furthermore, the safety risk caused by the fact that the remote control signal of the remote control operation unit is mistakenly transmitted to the vehicle-mounted receiving unit on the other mining mechanical equipment to output related actions can be further avoided.
And step 12, carrying out state check on the remote control operation unit and the vehicle-mounted receiving unit which have the pairing relation before power-on, and determining whether to establish a link with a paired opposite end according to a state check result.
In the technical scheme of the invention, before each remote control operation unit and the vehicle-mounted receiving unit which have a pairing relationship are powered on, a series of state checks are required, and then whether a link is established with a paired opposite end (namely the remote control operation unit or the vehicle-mounted receiving unit) can be determined according to the state check result.
For example, before the remote control unit is powered on, corresponding state check needs to be performed to obtain a corresponding state check result; if the state checking result meets the preset link establishment condition, the remote control operation unit establishes a link with a matched vehicle-mounted receiving unit; and if the state checking result does not accord with the preset link establishment condition, the remote control operation unit does not establish a link with the paired vehicle-mounted receiving unit.
For another example, before the vehicle-mounted receiving unit is powered on, corresponding state check needs to be performed first to obtain a corresponding state check result; if the state checking result meets the preset link establishing condition, the vehicle-mounted receiving unit establishes a link with a matched remote control operation unit; and if the state checking result does not meet the preset link establishment condition, the vehicle-mounted receiving unit does not establish a link with the paired remote control operation unit.
That is, only if the status check results of the paired remote operation unit and the in-vehicle receiving unit both meet the preset link establishment condition, the remote operation unit and the in-vehicle receiving unit can establish a link. If the state check result of any one of the paired remote control operation unit and the vehicle-mounted receiving unit does not meet the preset link establishment condition, the remote control operation unit and the vehicle-mounted receiving unit can not establish a link.
Through the operation mode, the remote control operation unit and the vehicle-mounted receiving unit can be ensured to be linked only under the relatively safe condition, so that various safety risks can be effectively avoided.
In addition, in the technical solution of the present invention, the specific content of the status check may be set in advance.
For example, as shown in fig. 2, in a preferred embodiment of the present invention, the performing a status check on the remote control unit before powering on, and determining whether to establish a link with a paired peer according to a result of the status check may include:
checking whether a parking brake control unit on a remote operation unit is in an applied state (i.e., whether the parking brake control unit is in a braking state);
checking whether a throttle control unit on the remote control operation unit is in a throttle non-output state (namely, a state of not giving a throttle);
checking whether a handle on the remote control operation unit is in a middle position state;
checking whether a handle on the remote control operation unit is in a state of normal operation;
checking whether a service brake control unit on the remote control operation unit is in a release state;
checking whether an engine start control unit on the remote operation unit is in a non-applied state;
checking whether a delay shutdown switch on a remote control operation unit is in a non-applied state;
checking whether an emergency stop switch on the remote control operation unit is in a non-applied state;
checking whether a trailer switch on the remote operated unit is in an unapplied state;
if the check results are yes, the remote control operation unit can establish a link with the paired vehicle-mounted receiving unit; if any of the above states is no, the remote operation unit cannot establish a link with the paired in-vehicle receiving unit.
In the state inspection, the state of the parking brake control unit is inspected, so that the misoperation caused by the fact that the mining mechanical equipment is accessed to a signal of the remote control operation unit in the running process can be avoided;
in the state inspection, the state of the accelerator control unit is inspected, so that the problem of mistaken output of the accelerator can be avoided;
in the state inspection, whether the handle is in the middle position state or not is inspected, so that the handle can be confirmed to have no output, and therefore misoperation of movement, arm lifting and unloading of mining mechanical equipment is avoided;
in the state inspection, whether the handle can normally work or not is inspected, so that faults such as broken lines, poor contact and the like of the handle can be inspected;
in the state check, the state of the service brake control unit is checked, so that the condition that the service brake control unit is in an application state or the condition that the remote control switch is in poor contact with the vehicle-mounted receiving unit can be avoided;
in the state check, the check of the state of the engine starting control unit can avoid establishing a link with the vehicle-mounted receiving unit when the engine starting control unit is in an applied state or the engine starting control unit is in poor contact;
in the state check, the state of the delay shutdown switch is checked, so that the link with the vehicle-mounted receiving unit can be avoided being established when the delay shutdown switch is in an applied state or the delay shutdown switch is in poor contact;
in the above state check, checking the emergency stop switch can avoid establishing a link with the vehicle-mounted receiving unit when the emergency stop switch is pressed (i.e. in an applied state) or the emergency stop switch is in poor contact;
in the above state check, checking the state of the trailer switch can avoid establishing a link with the onboard receiving unit when the trailer switch is on (i.e., in the applied state) or when the trailer switch is in poor contact.
For another example, as shown in fig. 2, in a preferred embodiment of the present invention, the performing a status check before powering on the vehicle-mounted receiving unit, and determining whether to establish a link with a paired peer according to a result of the status check may include:
the vehicle-mounted receiving unit checks whether the remote control state of the mining mechanical equipment where the vehicle-mounted receiving unit is located is in an enabling state;
the vehicle-mounted receiving unit checks whether the parking brake state of the mining mechanical equipment where the vehicle-mounted receiving unit is located is in an enabling state;
the vehicle-mounted receiving unit checks whether the neutral gear state of the mining mechanical equipment where the vehicle-mounted receiving unit is located is in an enabling state;
if the checking results are yes, the vehicle-mounted receiving unit on the mining mechanical equipment can be linked with the matched remote control operation unit; if any of the above states is no, the in-vehicle receiving unit cannot establish a link with the paired remote operation unit.
Therefore, after the above-described status check, the in-vehicle receiving unit on the mining machine can establish a link with the paired remote operation unit only when the remote control state, the parking brake state, and the neutral state of the mining machine are all enabled.
In addition, in the technical scheme of the invention, after the remote control operation unit is linked with the matched vehicle-mounted receiving unit, when the mining mechanical equipment or the remote control operation unit has sudden failure and the remote control operation unit has misoperation, corresponding safety measures can be realized through various functions (such as a trailer function, an emergency stop function, a passive emergency stop function, an inclination protection function, a handle malfunction protection function, a delay flameout protection function, a no-operation automatic flameout function, an engine starting protection function and the like) so as to ensure the safety of operation.
Specifically, in the technical scheme of the invention, the trailer function can be realized through the paired remote control operation unit and the vehicle-mounted receiving unit.
For example, in a preferred embodiment of the invention, after the teleoperated unit establishes a link with the paired on-board receiving unit, the trailer mode may be initiated on the teleoperated unit when the mining machine equipment fails.
When the trailer mode is started on the remote control operation unit, the remote control operation unit sends a control signal to the vehicle-mounted receiving unit matched with the remote control operation unit, so that the vehicle-mounted receiving unit releases the parking brake, releases the service brake and starts the trailer, and then the link between the remote control operation unit and the vehicle-mounted receiving unit is disconnected.
For another example, in a preferred embodiment of the present invention, after the remote control unit establishes a link with the paired in-vehicle receiving unit, the remote control unit will be restarted when a trailer switch on the remote control unit is erroneously pressed. In addition, when the preset combination key is pressed simultaneously, the trailer mode of the remote control operation unit can be released, so that the remote control operation unit is converted into a normal working state, and the safety risk of manual operation on the mining mechanical equipment can be avoided.
In addition, in the technical scheme of the invention, the emergency stop function can be realized through the paired remote control operation unit and the vehicle-mounted receiving unit.
For example, in a preferred embodiment of the present invention, after the remote control unit establishes a link with the paired in-vehicle receiving unit, when an emergency situation occurs, the emergency stop switch on the remote control unit may be pressed, so that the remote control unit sends an emergency stop signal to the paired in-vehicle receiving unit to control the mining machine to brake immediately without delay. Then, the remote operation unit releases the parking brake, turns off the engine, and disconnects the link between the remote operation unit and the in-vehicle receiving unit. Releasing the emergency stop function requires turning off the emergency stop button on the remote control unit and restarting the remote control unit.
Through the operation, the safety risk of manual operation on the mining mechanical equipment can be avoided.
In addition, in the technical scheme of the invention, the passive emergency stop function can be realized through the paired remote control operation unit and the vehicle-mounted receiving unit.
For example, in a preferred embodiment of the present invention, after the remote operation unit establishes a link with the paired in-vehicle receiving unit:
when the operation state of the remote control operation unit is that the parking brake control unit is in an applied state, the remote control operation unit is not in a trailer mode, and the delayed shutdown switch is in an unapplied state, if the remote control operation unit is suddenly powered off, the paired vehicle-mounted receiving unit turns off an engine of the mining mechanical equipment within a preset power-off time (for example, 3 seconds);
when the operation state of the remote control operation unit is that the parking brake control unit is in an applied state, the remote control operation unit is not in a trailer mode, and the delayed shutdown switch is in an applied state, if the remote control operation unit is suddenly powered off, the paired vehicle-mounted receiving unit turns off an engine of the mining mechanical equipment after preset delayed shutdown time (for example, 1 minute);
when the remote control unit is operated in a parking brake control mode in which the parking brake control unit is in an applied state, the paired on-vehicle receiving unit always maintains the original output if the remote control unit is suddenly powered off.
Through the design, the condition of the remote control operation unit during sudden failure or abnormal power failure can be effectively coped with, so that the operation of the mining mechanical equipment can be cleared under the condition of no trailer, and the parking brake and the service brake of the mining mechanical equipment are kept in a release state under the condition of the trailer, so that the trailer can be conveniently pulled.
In addition, in the technical scheme of the invention, the inclination protection function can be realized through the paired remote control operation unit and the vehicle-mounted receiving unit.
For example, in a preferred embodiment of the present invention, a tilt protection switch is provided in the remote operation unit; after the remote control operation unit is linked with the matched vehicle-mounted receiving unit, when the remote control operation unit inclines or falls, the remote control operation unit automatically enters a safe mode and sends a safe mode instruction to the matched vehicle-mounted receiving unit, the vehicle-mounted receiving unit sends an instruction for keeping the safe mode to the mining mechanical equipment and reports a fault, an engine of the mining mechanical equipment is turned off, parking brake and driving brake are applied, and the mining mechanical equipment is converted into a neutral gear mode. This safety mode is maintained at all times if the inclination or falling of the remote operation unit is not eliminated, so that the safety of the vehicle and the driver can be protected.
In addition, in the technical scheme of the invention, the remote control operation unit and the vehicle-mounted receiving unit which are matched can also realize the function of protecting the misoperation of the handle.
For example, in a preferred embodiment of the present invention, a malfunction safety protection switch is provided in the remote control operation unit. When the remote control operation unit is operated, the misoperation safety protection switch is required to be held to control the remote control operation unit to be in a normal working state, so that production safety accidents caused by vehicle movement due to mistaken touch of the handle can be prevented.
In addition, in the technical scheme of the invention, the delay flameout protection function can be realized through the paired remote control operation unit and the vehicle-mounted receiving unit.
For example, in a preferred embodiment of the present invention, a delay key-off switch is provided in the remote control unit, and after the remote control unit is linked to the paired in-vehicle receiving unit, in a case where the parking brake control unit of the remote control unit is in the applied state, when the delay key-off switch is pressed on the remote control unit and then the remote control unit is turned off, the paired in-vehicle receiving unit will control the engine of the mining machine so as not to be turned off for a preset engine holding time (e.g., 1 minute). At the moment, the driver can realize the random switching of the mining mechanical equipment under two operation modes of manual operation and remote control operation only according to the rule operation, and the mining mechanical equipment does not shut down, so that the working efficiency can be improved, and the engine or the motor of the mining mechanical equipment can be protected.
In addition, according to the technical scheme of the invention, the non-operation automatic flameout function can be realized through the paired remote control operation unit and the vehicle-mounted receiving unit.
For example, in a preferred embodiment of the present invention, after the remote operation unit establishes a link with the paired on-board receiving unit, when the mining machine equipment is in the on-board state for a preset time and is not operated by a person (i.e., no operation instruction is received), the mining machine equipment will automatically enter the safe mode (e.g., the scraper will perform operations such as flameout and braking), so that the operation cost can be saved.
In addition, in the technical scheme of the invention, the engine starting protection function can be realized through the paired remote control operation unit and the vehicle-mounted receiving unit.
For example, in a preferred embodiment of the invention, after the remote operation unit establishes a link with the paired on-board receiving unit, when the difference between the last key-off time of the mining mechanical equipment and the present engine start time is less than a preset start time interval, the engine of the mining mechanical equipment is not started, so that the engine of the mining mechanical equipment is limited to be started again within the start time interval, and the engine is prevented from being damaged due to the fact that the engine is started continuously for multiple times.
In summary, in the technical solution of the present invention, since the pairing relationship is respectively established for each remote control unit and the vehicle-mounted receiving unit, and the same parameter information is configured for the remote control unit and the vehicle-mounted receiving unit having the pairing relationship, it is possible to avoid mutual interference that may occur when a plurality of vehicle-mounted receiving units exist in the same radio frequency region, and it is also possible to avoid safety risk caused by a remote control signal of the remote control unit being erroneously transmitted to the vehicle-mounted receiving unit on another mining mechanical device, which may cause output related actions. In addition, because each remote control operation unit and the vehicle-mounted receiving unit are subjected to state check before being electrified, and whether the link is established with the paired opposite end is determined according to the state check result, the link can be established only under the relatively safe condition of the remote control operation unit and the vehicle-mounted receiving unit, so that various safety risks can be effectively avoided, and the running safety of the mining mechanical equipment is effectively improved.
The safety protection method for the operation of the mining mechanical equipment in the technical scheme can be applied to a wireless remote control safety protection system of the underground scraper, and also can be applied to intelligent operation systems of various mining mechanical equipment.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (12)
1. A safety protection method for operation of mining machinery equipment is characterized by comprising the following steps:
establishing a pairing relationship for each remote control operation unit and each vehicle-mounted receiving unit respectively, and configuring the same parameter information for the remote control operation units and the vehicle-mounted receiving units with the pairing relationship;
and the remote control operation unit and the vehicle-mounted receiving unit which have the pairing relation are subjected to state check before being electrified, and whether a link is established with a paired opposite end is determined according to a state check result.
2. The method of claim 1, wherein the determining whether to establish a link with the paired peer according to the status check result comprises:
if the state checking results of the paired remote control operation unit and the paired vehicle-mounted receiving unit both accord with the preset link establishing condition, the paired remote control operation unit and the paired vehicle-mounted receiving unit establish a link; otherwise, the paired remote control operation unit and the vehicle-mounted receiving unit do not establish a link.
3. The method of claim 1 or 2, wherein the remote control unit performs a status check before powering on, and wherein determining whether to establish a link with the paired peer based on the status check result comprises:
checking whether a parking brake control unit on a remote operation unit is in an applied state;
checking whether an accelerator control unit on the remote control operation unit is in an accelerator non-output state;
checking whether a handle on the remote control operation unit is in a middle position state;
checking whether a handle on the remote control operation unit is in a state of normal operation;
checking whether a service brake control unit on the remote control operation unit is in a release state;
checking whether an engine start control unit on the remote operation unit is in a non-applied state;
checking whether a delay shutdown switch on a remote control operation unit is in a non-applied state;
checking whether an emergency stop switch on the remote control operation unit is in a non-applied state;
checking whether a trailer switch on the remote operated unit is in an unapplied state;
if the checking results are yes, the remote control operation unit and the matched vehicle-mounted receiving unit are linked; otherwise, the remote control operation unit does not establish a link with the paired vehicle-mounted receiving unit.
4. The method of claim 1 or 2, wherein the vehicle-mounted receiving unit performs status check before being powered on, and the determining whether to establish the link with the paired opposite end according to the status check result comprises:
the vehicle-mounted receiving unit checks whether the remote control state of the mining mechanical equipment where the vehicle-mounted receiving unit is located is in an enabling state;
the vehicle-mounted receiving unit checks whether the parking brake state of the mining mechanical equipment where the vehicle-mounted receiving unit is located is in an enabling state;
the vehicle-mounted receiving unit checks whether the neutral gear state of the mining mechanical equipment where the vehicle-mounted receiving unit is located is in an enabling state;
if the checking results are yes, the vehicle-mounted receiving unit on the mining mechanical equipment is linked with the matched remote control operation unit; otherwise, the vehicle-mounted receiving unit does not establish a link with the paired remote operation unit.
5. The method of claim 1, further comprising:
after the remote operation unit establishes a link with the paired on-board receiving unit, when the mining machine equipment fails, the trailer mode is started on the remote operation unit.
6. The method of claim 1, further comprising:
after the remote control operation unit is linked with the matched vehicle-mounted receiving unit, when an emergency occurs, an emergency stop switch on the remote control operation unit is pressed, so that the remote control operation unit sends an emergency stop signal to the matched vehicle-mounted receiving unit, and the mining mechanical equipment is controlled to brake immediately.
7. The method of claim 1, further comprising:
after the remote control operation unit establishes a link with the paired in-vehicle receiving unit:
when the operation state of the remote control operation unit is that the parking brake control unit is in an applied state, is not in a trailer mode and the delay shutdown switch is in an unapplied state, if the remote control operation unit is suddenly powered off, the paired vehicle-mounted receiving unit closes an engine of the mining mechanical equipment within preset power-off time;
when the operation state of the remote control operation unit is that the parking brake control unit is in an applied state, the remote control operation unit is not in a trailer mode, and the delayed shutdown switch is in an applied state, if the remote control operation unit is suddenly powered off, the paired vehicle-mounted receiving unit closes an engine of the mining mechanical equipment after preset delayed shutdown time;
when the remote control unit is operated in a parking brake control mode in which the parking brake control unit is in an applied state, the paired on-vehicle receiving unit always maintains the original output if the remote control unit is suddenly powered off.
8. The method of claim 1, further comprising:
a tilt protection switch is arranged in the remote control operation unit;
after the remote control operation unit is linked with the paired vehicle-mounted receiving unit, when the remote control operation unit inclines or falls off, the remote control operation unit automatically enters a safe mode and sends a safe mode instruction to the paired vehicle-mounted receiving unit;
and the vehicle-mounted receiving unit sends a safety mode maintaining instruction to the mining mechanical equipment and reports a fault, an engine of the mining mechanical equipment is closed, parking brake and service brake are applied, and the mining mechanical equipment is switched to a neutral mode.
9. The method of claim 1, wherein:
and a malfunction safety protection switch is arranged in the remote control operation unit.
10. The method of claim 1, further comprising:
a delay flameout switch is arranged in the remote control operation unit;
after the remote control unit is linked with the paired in-vehicle receiving unit, in the case where the parking brake control unit of the remote control unit is in the applied state, when the delay key-off switch is pressed on the remote control unit and then the remote control unit is turned off, the paired in-vehicle receiving unit will control the engine of the mining mechanical equipment not to be turned off for a preset engine holding time.
11. The method of claim 1, further comprising:
after the remote operation unit is linked with the paired vehicle-mounted receiving unit, when the mining mechanical equipment is in a vehicle-holding state for a preset time and an operation instruction is not received, the mining mechanical equipment automatically enters a safety mode.
12. The method of claim 1, further comprising:
after the remote control operation unit is linked with the paired vehicle-mounted receiving unit, when the difference between the last flameout time of the mining mechanical equipment and the engine starting time of the mining mechanical equipment is smaller than a preset starting time interval, the engine of the mining mechanical equipment is not started.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911267474.1ACN110992665A (en) | 2019-12-11 | 2019-12-11 | Safety protection method for operation of mining mechanical equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911267474.1ACN110992665A (en) | 2019-12-11 | 2019-12-11 | Safety protection method for operation of mining mechanical equipment |
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