CN108665684A - A kind of voice alarm method and device - Google Patents
A kind of voice alarm method and device Download PDFInfo
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- CN108665684A CN108665684A CN201710192384.5A CN201710192384A CN108665684A CN 108665684 A CN108665684 A CN 108665684A CN 201710192384 A CN201710192384 A CN 201710192384A CN 108665684 A CN108665684 A CN 108665684A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/187—Machine fault alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
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- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Electromagnetism (AREA)
- Control Of Conveyors (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The embodiment of the invention discloses a kind of voice alarm method and device, this method includes：Detect the fault message in a control equipment in gypsum board manufacture；Start corresponding alarm signal according to the fault message；The alarm signal is played out with speech form.Scheme through the embodiment of the present invention, the fault message in a control equipment in gypsum board manufacture can be detected, and alarm is carried out with speech form so that sends out specific alarm in time when a control equipment generates failure, so that operating personnel is understood fault details in time, improves troubleshooting efficiency.
Description
Technical field
The present invention relates to the control technology in gypsum board manufacture, espespecially a kind of voice alarm method and device.
Background technology
Dispensing and the equipment of pressing section belong to the control equipment in gypsum board manufacture, include mainly dispensing, molding and master
Line three parts control device.Gypsum board mixture is divided into siccative, wet feed two parts.Siccative dispensing includes mainly building gypsum plaster, adds
Add agent, starch, coagulant etc.；Wet feed dispensing includes mainly paper pulp, foaming agent, water and additive etc..So a control is production line
Most complicated control section, the amount of each dispensing addition is inaccurate all to be impacted entire control section, or even generates the plate that gives up, and caused
The wasting of resources.
Invention content
In order to solve the above-mentioned technical problem, an embodiment of the present invention provides a kind of voice alarm method and device, Neng Gou
One control equipment sends out specific alarm in time when generating failure, so that operating personnel is understood fault details in time, improves failure
Treatment effeciency.
In order to reach purpose of the embodiment of the present invention, an embodiment of the present invention provides a kind of voice alarm method, this method packets
It includes：
Detect the fault message in a control equipment in gypsum board manufacture；
Start corresponding alarm signal according to the fault message；
The alarm signal is played out with speech form.
Optionally, fault message includes：Dispensing not blanking, dispensing is overflowed and belt conveyer scale sideslip.
Optionally, detecting the fault message in gypsum board manufacture in a control equipment includes：
The material position of dispensing is detected whether higher than preset first position and/or less than the preset second position；And detection
Whether the belt of belt conveyer scale deviates preset the third place；
The first electric signal is generated when detecting that the material position of dispensing is higher than preset first position；When the material for detecting dispensing
Position generates the second electric signal when being less than the preset second position；When detecting that the belt of belt conveyer scale deviates preset the third place
Generate third electric signal；
Using the first electric signal, the second electric signal and third electric signal as fault message.
Optionally, starting corresponding alarm signal according to fault message includes：
Using the first electric signal, the second electric signal and/or third electric signal as the switch shape for making preset intermediate relay
The changed switching signal of state；Wherein, which includes one or more, and each intermediate relay corresponds to electric all the way
Signal；
When any one or more on off states in multiple intermediate relays change, on off state is occurred
The state-change of the intermediate relay of variation is sent to processor；
Alarm unit, which is controlled, by processor sends out corresponding alarm signal.
Optionally, this method further includes：It, will after generating the first electric signal, the second electric signal and/or third electric signal
First electric signal, the second electric signal and/or third electric signal are sent to preset signal processing unit, pass through signal processing unit
The first electric signal, the second electric signal and/or third electric signal are uniformly read and handle, and electric signal unification is sent by treated
To corresponding intermediate relay, the switching signal as each intermediate relay.
Optionally, which includes：Programmable logic controller (PLC) PLC.
Optionally, before playing out alarm signal with speech form, this method further includes：In advance with speech form
Store various alarm signals.
In order to reach purpose of the embodiment of the present invention, the embodiment of the present invention additionally provides a kind of phonetic alarm device, the device
Including：Detection unit, processing unit and alarm unit；
Detection unit, for detecting the fault message in gypsum board manufacture in a control equipment；
Processing unit, for starting corresponding alarm signal according to fault message；
Alarm unit, for playing out alarm signal with speech form.
Optionally, detection unit includes：Preassembled first sensor on proportion container is installed in advance on proportion container
Second sensor and belt conveyer scale on preassembled 3rd sensor；
Detection unit detects the fault message in a control equipment in gypsum board manufacture：
Whether the material position that first sensor detects dispensing is higher than preset first position；Second sensor detects the material of dispensing
Whether position is less than the preset second position；And whether the belt of 3rd sensor detection belt conveyer scale deviates preset third position
It sets；
When detecting that the material position of dispensing is higher than preset first position, first sensor generates the first electric signal；Work as inspection
When measuring the material position of dispensing less than the preset second position, second sensor generates the second electric signal；When detecting belt conveyer scale
When belt deviates preset the third place, 3rd sensor generates third electric signal；
First sensor, second sensor and 3rd sensor are respectively by the first electric signal, the second electric signal and third electricity
Signal is as fault message.
Optionally, first sensor, second sensor and 3rd sensor are infrared tube position sensor.
Optionally, processing unit includes intermediate relay and processor；
Processing unit starts corresponding alarm signal according to fault message：
Intermediate relay is using the first electric signal, the second electric signal and/or third electric signal as making opening for intermediate relay
The changed switching signal of off status；Wherein, intermediate relay includes one or more, and each intermediate relay corresponds to all the way
Electric signal；
When any one or more on off states in multiple intermediate relays change, on off state becomes
State-change is sent to processor by the intermediate relay of change；
Processor control alarm unit sends out corresponding alarm signal.
Optionally, alarm unit includes memory and player；
Memory, for before player plays out alarm signal with speech form, being deposited in advance with speech form
Store up various alarm signals.
An embodiment of the present invention provides a kind of voice alarm method and device, this method includes：It detects in gypsum board manufacture
Fault message in one control equipment；Start corresponding alarm signal according to the fault message；By the alarm signal with speech form
It plays out.Scheme through the embodiment of the present invention can detect the fault message in a control equipment in gypsum board manufacture, and with language
Sound form carries out alarm so that sends out specific alarm in time when a control equipment generates failure, makes operating personnel
Fault details are understood in time, improve troubleshooting efficiency.
The other feature and advantage of the embodiment of the present invention will illustrate in the following description, also, partly from explanation
It becomes apparent in book, or is understood by implementing the embodiment of the present invention.The purpose of the embodiment of the present invention and other advantages
It can realize and obtain by specifically noted structure in specification, claims and attached drawing.
Description of the drawings
Attached drawing is used for providing further understanding technical solution of the present invention, and a part for constitution instruction, with this
The embodiment of application technical solution for explaining the present invention together, does not constitute the limitation to technical solution of the present invention.
Fig. 1 is the voice alarm method flow chart of the embodiment of the present invention；
Fig. 2 is the voice alarm method schematic diagram of the embodiment of the present invention；
Fig. 3 is the phonetic alarm device composition frame chart of the embodiment of the present invention.
Specific implementation mode
Understand in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing pair
The embodiment of the present invention is described in detail.It should be noted that in the absence of conflict, the embodiment in the application and reality
Applying the feature in example mutually can arbitrarily combine.
Step shown in the flowchart of the accompanying drawings can be in the computer system of such as a group of computer-executable instructions
It executes.Also, although logical order is shown in flow charts, and it in some cases, can be with suitable different from herein
Sequence executes shown or described step.
In order to reach purpose of the embodiment of the present invention, an embodiment of the present invention provides a kind of voice alarm methods, such as Fig. 1 institutes
Show, this method includes S101-S103：
Fault message in S101, detection gypsum board manufacture in a control equipment.
In embodiments of the present invention, it is known that the control in gypsum board manufacture is control section most complicated on production line, a control
Any one failure will impact entire control section in equipment, but equipment fault is difficult to avoid that again, therefore
In order to reduce influence of the control equipment fault to the entire production line, rapidly debug in time, the embodiment of the present invention carries
Gone out a kind of voice alarm method, can in time, clearly to operating personnel's faults information, avoid due to alarm not
Operating personnel are chaotic caused by clear, cause operating personnel that cannot occur the phenomenon that going handling failure at the first time.
Optionally, fault message may include：Dispensing not blanking, dispensing is overflowed and belt conveyer scale sideslip.
In embodiments of the present invention, since the control of an empty workshop section is complicated, it is thus possible to face various faults information, example
Such as, the various information such as the low material position disappearance of pulp tank, splicing prompt, not blanking, feed back overflow and belt conveyer scale sideslip, but be not limited to
Above-mentioned fault message.
In the embodiment of the present invention, in order to find failure in time, need to control in equipment in gypsum board manufacture one
Fault message is measured in real time.In specific implementation, a variety of detection methods may be used, given birth to for example, being acquired using camera
The image or video information at producing line scene, and/or using different production equipments on one or more sensors acquisition production line
Operation information.The sensor can be one or more, and this is not restricted.Below with dispensing not blanking (such as starch not under
Material), dispensing overflow and belt conveyer scale sideslip be embodiment, the detection scheme to these types of fault message is described in detail.
Optionally, the fault message detected in gypsum board manufacture in a control equipment includes step S201-S203：
S201, whether the material position of dispensing is detected higher than preset first position and/or less than the preset second position；And
Whether the belt of detection belt conveyer scale deviates preset the third place.
In embodiments of the present invention, due to dispensing not blanking will make receive dispensing container in do not expect, if
Position sensor is set in the container of the reception dispensing, then the position sensor can be made to be consistently detected the appearance for receiving dispensing
Dispensing material position in device is not up to predeterminated position, is less than predeterminated position, such as above-mentioned second position in other words.Similarly, dispensing is not
Blanking can also make the dispensing in lower material container not reduce always, and can also be constantly in feeding state due to previous process
Under, cause the dispensing in lower material container gradually to increase, or even overflow；If being provided with position biography in the container of the reception dispensing
Sensor can then so that the dispensing material position that the position sensor is consistently detected in lower material container is more than predeterminated position always, or
It says and is higher than predeterminated position, such as above-mentioned first position.Based on above-mentioned analysis, as long as being arranged in cell therefor one or more
Position sensor can go out certain fault messages in feeding process according to the position detection of material position.The position sensor
Installation site and accuracy of detection can be accordingly arranged according to specific detection object, and this is not restricted.In addition, the position
Sensor can be that touch sensor can also be noncontacting proximity sensor.It in embodiments of the present invention can be preferably non-contact
Formula sensor, for example, ultrasonic sensor, infrared sensor (the infrared tube position sensor in such as aforementioned schemes), connecing
Nearly sensor etc..
In another embodiment, for belt conveyer scale, belt offset is the failure often occurred, such as pericarp
Belt scale shifts, and belt conveyer scale must leave original position and be moved to both sides, if placed position in the side that belt claims
Sensor is set, then when can make belt conveyer scale that position offset occur, position sensor makes corresponding reflection, is carried to carry out alarm
Show.Therefore, it in order to detect the fault message of belt conveyer scale, can be passed in the one or more positions of one or both sides setting that belt claims
Sensor.Installation number, installation site and the accuracy of detection of the position sensor can be according to length, the deviation frequencies etc. of belt conveyer scale
Many factors are configured, and this is not restricted.Equally, which may be that touch sensor can also be
Noncontacting proximity sensor.In embodiments of the present invention can preferred noncontacting proximity sensor, for example, ultrasonic sensor, infrared
Line sensor, proximity sensor etc..S202, the first telecommunications is generated when detecting that the material position of dispensing is higher than preset first position
Number；The second electric signal is generated when detecting that the material position of dispensing is less than the preset second position；When the belt for detecting belt conveyer scale
Third electric signal is generated when deviateing preset the third place.
In embodiments of the present invention, detect that dispensing is defeated by above-mentioned sensor (including but not limited to position sensor)
Corresponding electric signal can be generated after breaking down at flow and belt conveyer scale by sending, the first telecommunications as described in the above
Number, the second electric signal, third electric signal, and be sent respectively to different intermediate relays, difference sent out to be directed to different situations
Warning message.
In embodiments of the present invention, first electric signal, the second electric signal and third electric signal all can be one high electricity
A flat or low level.
S203, using the first electric signal, the second electric signal and third electric signal as fault message.
In embodiments of the present invention, the sensor just meeting due to when a control equipment breaks down, being placed at relevant device
Electric signal is sent out, therefore the electric signal that each sensor generates can be as the fault message of a control device fails.
In embodiments of the present invention, S201-S203 can realize the fault detect of a control equipment through the above steps, need
It is noted that the above-mentioned method for detecting fault message by sensor is not limited to be applied to dispensing not blanking, dispensing spilling
And under the operating modes such as belt conveyer scale sideslip, other operating modes can also be applied to, for example, splicing prompt, security protection (such as prevent personnel
It is close) etc..
S102, corresponding alarm signal is started according to the fault message.
It in embodiments of the present invention, can be further right after detecting fault message by above-described embodiment scheme
The fault message is transmitted and handles, i.e., starts corresponding alarm signal according to the fault message described in above-described embodiment scheme
Number, it is played out in the form of voice alarm by by the fault message.
Optionally, starting corresponding alarm signal according to fault message includes：
Using the first electric signal, the second electric signal and/or third electric signal as the switch shape for making preset intermediate relay
The changed switching signal of state；Wherein, which includes one or more, and each intermediate relay corresponds to electric all the way
Signal；
When any one or more on off states in multiple intermediate relays change, on off state is occurred
The state-change of the intermediate relay of variation is sent to processor；
Alarm unit, which is controlled, by processor sends out corresponding alarm signal.
In embodiments of the present invention, an intermediate relay can be respectively set for pre-set each sensor,
To receive the electric signal that corresponding sensor is sent, and the state-change for converting the electric signal to intermediate relay passes
Processor is given to be handled.
Optionally, this method further includes：It, will after generating the first electric signal, the second electric signal and/or third electric signal
First electric signal, the second electric signal and/or third electric signal are sent to preset signal processing unit, pass through signal processing unit
The first electric signal, the second electric signal and/or third electric signal are uniformly read and handle, and electric signal unification is sent by treated
To corresponding intermediate relay, the switching signal as each intermediate relay.
In embodiments of the present invention, for the workshop section for being provided with multiple sensors, for the ease of managing and convenient for controlling,
Can between sensor and intermediate relay setting signal processing unit, optionally, which can be PLC
(Programmable Logic Controller programmable logic controller (PLC)s) processing unit, as shown in Figure 2.Sensor will be examined
Measure the electric signal transmission generated after fault message and give PLC processing units, by corresponding PLC program control it is corresponding intermediate after
The on off state of electric appliance changes, for example, the normally opened contact of intermediate relay is closed, and by the state change of intermediate relay
Signal is sent to processor, so that processor controls alarm unit according to the state-change plays corresponding alarm signal
Breath.
In embodiments of the present invention, the wiring of the intermediate relay of PLC to processor may include multichannel, for example, 12
Road can correspond to 12 alarm voices, and the on off state of each intermediate relay changes (such as conducting of getting an electric shock), right therewith
The audio alert answered just sounds, and such audio alert is just numbered from 1 to 12, which road conducting is with regard to the roads Bao Na voice.
In embodiments of the present invention, which can be microcontroller, DSP (Digital Signal Processing numbers
Word signal processing) and other control devices.
S103, the alarm signal is played out with speech form.
It in embodiments of the present invention, can be according to being led after alarm unit is triggered by above-described embodiment scheme
Logical circuit plays corresponding alarm signal, and can be played out with speech form.
Optionally, before playing out alarm signal with speech form, this method further includes：In advance with speech form
Store various alarm signals.
In embodiments of the present invention, in order to realize audio alert, alarm signal can be deposited with speech form in advance
Storage, such as voice content can sequentially be copied into PCB (Printed Circuit Board printed circuit boards) plate
In TF (flash memory cards) cards of (supporting TF card), when detecting a certain fault message, just basis is sequentially transferred accordingly
Go out audio alert content corresponding with the fault message to play out.The audio alert content may include：" it note that skin
Belt scale sideslip ", " note that and start splicing ", " note that dispensing stops blanking ", " please noting that, someone swarms into danger zone "
Deng.
In order to reach purpose of the embodiment of the present invention, the embodiment of the present invention additionally provides a kind of phonetic alarm device 1, such as Fig. 3
It is shown, it should be noted that any embodiment in above-mentioned embodiment of the method is suitable for the device embodiment, herein not
It repeats again, which includes：Detection unit 11, processing unit 12 and alarm unit 13；
Detection unit 11, for detecting the fault message in gypsum board manufacture in a control equipment；
Processing unit 12, for starting corresponding alarm signal according to fault message；
Alarm unit 13, for playing out alarm signal with speech form.
Optionally, detection unit 11 includes：It is preassembled first sensor 111 on proportion container, pre- on proportion container
Preassembled 3rd sensor 113 in the second sensor 112 and belt conveyer scale first installed；
Detection unit detects the fault message in a control equipment in gypsum board manufacture：
Whether the material position that first sensor 111 detects dispensing is higher than preset first position；The detection of second sensor 112 is matched
Whether the material position of material is less than the preset second position；And 3rd sensor 113 detect belt conveyer scale belt whether deviate it is default
The third place；
When first sensor 111 detects that the material position of dispensing is higher than preset first position, first sensor 111 generates
First electric signal；When second sensor 112 detects that the material position of dispensing is less than the preset second position, second sensor 112
Generate the second electric signal；When 3rd sensor 113 detects that the belt of belt conveyer scale deviates preset the third place, third sensing
Device 113 generates third electric signal；
First sensor 111, second sensor 112 and 3rd sensor 113 are respectively by the first electric signal, the second electric signal
With third electric signal as fault message.
Optionally, first sensor 111, second sensor 112 and 3rd sensor 113 are infrared tube position sensing
Device.
Optionally, processing unit 12 includes intermediate relay 121 and processor 122；
Processing unit 12 starts corresponding alarm signal according to fault message：
Intermediate relay 121 is using the first electric signal, the second electric signal and/or third electric signal as making intermediate relay
The 121 changed switching signal of on off state；Wherein, intermediate relay 121 includes one or more, each intermediate relay
Device corresponds to electric signal all the way；
When any one or more on off states in multiple intermediate relays 121 change, on off state hair
State-change is sent to processor by the intermediate relay for changing；
Processor 122 controls alarm unit and sends out corresponding alarm signal.
Optionally, alarm unit 13 includes memory 131 and player 132；
Memory 131, for before player plays out alarm signal with speech form, in advance with speech form
Store various alarm signals.
Compared with prior art, an embodiment of the present invention provides a kind of voice alarm method and device, this method includes：Inspection
Survey the fault message in a control equipment in gypsum board manufacture；Start corresponding alarm signal according to the fault message；By the alarm
Signal is played out with speech form.Scheme through the embodiment of the present invention can detect in gypsum board manufacture in a control equipment
Fault message, and alarm is carried out with speech form so that specific alarm is sent out in time when a control equipment generates failure
Prompt makes operating personnel understand fault details in time, improves troubleshooting efficiency.
Although disclosed herein embodiment it is as above, the content only for ease of understanding the present invention and use
Embodiment is not limited to the present invention.Technical staff in any fields of the present invention is taken off not departing from the present invention
Under the premise of the spirit and scope of dew, any modification and variation, but the present invention can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Claims (10)
1. a kind of voice alarm method, which is characterized in that the method includes：
Detect the fault message in a control equipment in gypsum board manufacture；
Start corresponding alarm signal according to the fault message；
The alarm signal is played out with speech form.
2. voice alarm method according to claim 1, which is characterized in that the fault message includes：Dispensing not blanking,
Dispensing is overflowed and belt conveyer scale sideslip.
3. voice alarm method according to claim 1 or 2, which is characterized in that a control in the detection gypsum board manufacture
Fault message in equipment includes：
The material position of dispensing is detected whether higher than preset first position and/or less than the preset second position；And detection belt
Whether the belt of scale deviates preset the third place；
The first electric signal is generated when detecting that the material position of the dispensing is higher than the preset first position；It is described when detecting
The material position of dispensing generates the second electric signal when being less than the preset second position；When the belt deviation for detecting the belt conveyer scale
Third electric signal is generated when the preset the third place；
Using first electric signal, second electric signal and the third electric signal as the fault message.
4. voice alarm method according to claim 3, which is characterized in that described to be started accordingly according to the fault message
Alarm signal include：
Using first electric signal, second electric signal and/or the third electric signal as making preset intermediate relay
The changed switching signal of on off state；Wherein, the intermediate relay includes one or more, each intermediate relay
Corresponding electric signal all the way；
When any one or more on off states in the multiple intermediate relay change, by the on off state
The state-change of changed intermediate relay is sent to processor；
Alarm unit, which is controlled, by the processor sends out corresponding alarm signal.
5. voice alarm method according to claim 4, which is characterized in that the method further includes：Generating described the
After one electric signal, second electric signal and/or the third electric signal, by first electric signal, second telecommunications
Number and/or the third electric signal be sent to preset signal processing unit, read simultaneously by the way that the signal processing unit is unified
First electric signal, second electric signal and/or the third electric signal are handled, and electric signal unification is sent out by treated
Corresponding intermediate relay is given, the switching signal as each intermediate relay.
6. voice alarm method according to claim 5, which is characterized in that the signal processing unit includes：It is programmable
Logic controller PLC.
7. voice alarm method according to claim 3, which is characterized in that broadcast with speech form by the alarm signal
Before running out, the method further includes：Various alarm signals are stored with speech form in advance.
8. a kind of phonetic alarm device, which is characterized in that described device includes：Detection unit, processing unit and alarm unit；
The detection unit, for detecting the fault message in gypsum board manufacture in a control equipment；
The processing unit, for starting corresponding alarm signal according to the fault message；
The alarm unit, for playing out the alarm signal with speech form.
9. phonetic alarm device according to claim 8, which is characterized in that the detection unit includes：On proportion container
Preassembled third on preassembled second sensor and belt conveyer scale on preassembled first sensor, proportion container
Sensor；
The detection unit detects the fault message in a control equipment in gypsum board manufacture：
Whether the material position of the first sensor detection dispensing is higher than preset first position；The second sensor detects dispensing
Material position whether be less than the preset second position；And the 3rd sensor detect the belt conveyer scale belt whether deviate it is pre-
If the third place；
When detecting that the material position of the dispensing is higher than the preset first position, the first sensor generates the first telecommunications
Number；When detecting that the material position of the dispensing is less than the preset second position, the second sensor generates the second telecommunications
Number；When detecting that the belt of the belt conveyer scale deviates the preset the third place, the 3rd sensor generates third electricity
Signal；
The first sensor, the second sensor and the 3rd sensor are respectively by first electric signal, described
Two electric signals and the third electric signal are as the fault message.
10. phonetic alarm device according to claim 9, which is characterized in that the processing unit includes intermediate relay
And processor；
The processing unit starts corresponding alarm signal according to the fault message：
The intermediate relay is using first electric signal, second electric signal and/or the third electric signal as making
State the changed switching signal of on off state of intermediate relay；Wherein, the intermediate relay includes one or more, often
A intermediate relay corresponds to electric signal all the way；
When any one or more on off states in the multiple intermediate relay change, the on off state hair
State-change is sent to the processor by the intermediate relay for changing；
The processor control alarm unit sends out corresponding alarm signal.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110490995A (en) * | 2019-08-26 | 2019-11-22 | 精英数智科技股份有限公司 | A kind of belt operating status method for monitoring abnormality, system, equipment and storage medium |
| CN112070997A (en) * | 2020-09-07 | 2020-12-11 | 沈阳亨通光通信有限公司 | Fault alarm method, device, equipment and storage medium |
| CN114326489A (en) * | 2021-12-15 | 2022-04-12 | 太仓北新建材有限公司 | Voice broadcasting system |
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