CN106023501B - Warehouse environment information gathering warning system - Google Patents
Warehouse environment information gathering warning system Download PDFInfo
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- CN106023501B CN106023501B CN201610451046.4A CN201610451046A CN106023501B CN 106023501 B CN106023501 B CN 106023501B CN 201610451046 A CN201610451046 A CN 201610451046A CN 106023501 B CN106023501 B CN 106023501B
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/08—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
Abstract
The present invention relates to warehouse environment information gathering warning system, it includes multiple humiture collectors, multiple smoke detectors, Fire extinguisher and a main controller, temperature-humidity signal for recording synchronism time and its collection sends main controller processing to, if detecting data over run, alarmed by GSM nets with short message mode to owner and relevant department.
Description
(1) technical field：
The present invention relates to warehouse environment information gathering warning system, and it includes multiple humiture collectors, multiple sense cigarettes are visited
Survey device, Fire extinguisher and a main controller, the temperature-humidity signal for recording synchronism time and its collection and send main controller to
Processing, if detecting data over run, alarmed by GSM nets with short message mode to owner and relevant department.
(2) background technology：
The control system of power supply is provided by power network, its each electronic equipment or intermodule are communicated by special circuit,
To correct the timing time of each electronic equipment or electronic module, reach synchronous operation purpose.Due to being made using special circuit communication
Wiring complicates and increases cost, if timing time is not corrected by line traffic, due to traditional timing error, runs number
After hour, it, which accumulates timing error, can make system control action inconsistent, may cause system crash, and at some, often change is set
Meter, its products application of the big occasion of wiring installation amount are restricted.
(3) content of the invention：
The present invention relates to warehouse environment information gathering warning system, and it includes multiple humiture collectors, multiple sense cigarettes are visited
Device, Fire extinguisher and a main controller are surveyed, each position sets a humiture collector in warehouse, and on warehouse room top
Multiple smoke detectors (according to environmental characteristic or using photosensitive or heat detector) are installed in portion, and each humiture collector includes
One or several Temperature Humidity Sensors, humiture collector and smoke detector all configure toggle switch, all set unique number,
Usually, the temperature-humidity signal of recording synchronism time and its collection sends main controller processing to, if smoke detector detects cigarette
Mistiness degree transfinites, and according to fire alarm intensity, the classification of time, is alarmed to main controller, main controller or selection are opened Fire extinguisher and risen
Move fire-extinguishing apparatus and send alarm, and alarmed by GSM nets with short message mode to owner and relevant department.Fire extinguisher is defeated
Go out through Phototube Coupling, bidirectional triode thyristor control, or contact relay circuit control, fire-extinguishing apparatus is connected on the civil power outside system.
Each humiture collector, each smoke detector and main controller are connected on same electric power netting twine and set master switch,
Diode is installed after master switch, and in main controller, Fire extinguisher and each humiture collector, each smoke detector
Each installation cycle discriminator circuit, keep system to keep strokes for producing lock in time, while respectively installed in its telecommunication circuit
One communications electronics switch, switch drive module.During communication, half wave communication through power line, communications electronics switch is connected；Instead
It, master controller first sends sign off instruction, shut-off communications electronics switch to each electric quantity monitoring instrument.
Communication is to be controlled by lock in time to keep communication operation consistent, and main controller, Fire extinguisher and each humiture are adopted
It is to be depressured from electric power netting twine through resistance, just connecing two poles to collect the switch drive module that communications electronics switch in instrument, each smoke detector
Pipe further after the negative half-wave of isolation cycle, is connected to comparator input terminal, and its reference voltage is 100Mv to 200Mv, using two poles
Tube voltage drop is obtained through electric resistance partial pressure, therefore the output end of comparator is square-wave signal, and it is produced after the diode rectification just connect
Corresponding power network cycle bears the positive square-wave signal of half-wave, the I/O mouths of single-chip microcomputer is connected to, when positive square-wave signal is arrived in single-chip microcomputer scanning
Traffic operation is performed, the positive square-wave signal is additionally operable to drive communications electronics switch, therefore communications electronics switch is in cycle positive half-wave
When turn off, cycle bear half-wave when connect.Communications electronics switch is connected to single-chip microcomputer corresponding port according to used communication mode, and carries out
Signal condition, during sign off under main controller control, make drive circuit shut-off communications electronics switch.
SMS R-T unit is installed in system, using GSM network, communicated with receiving and dispatching short message mode, at present
GSM SMS messaging service is still that a kind of short message service GSM SMS of domestic popularity rate highest possesses data transmission work(in itself
Can, the transmission of a message, which just constitutes, once to communicate, and the transmission of message is by the SMS service center outside GSM
(SMSC) relayed, it does not have to dialing and can establish connection by GSM SMS service SMS, and user adds the information to be sent out
Stay of two nights data are sent to short message service center, and the final stay of two nights is then forwarded to after short message service center completes storage.So
When GSM terminals are not started shooting, information will not lose.
The present invention utilizes the positive half cycle ascent stage of power network cycle, takes three to screen point and realizes that the identification to cycle signal is sentenced
It is fixed, recycle the cycle time to establish lock in time, realize main controller in system, Fire extinguisher and each humiture collector, each
The synchronous operation of smoke detector.
The cycle discriminator circuit structural representation of main controller, Fire extinguisher and each humiture collector, each smoke detector
Figure includes filtered electrical as shown in Fig. 2 be made up of three voltage comparators using hysteresis loop comparators in each voltage comparator
Road, the reference voltage of its voltage comparator are provided by mu balanced circuit.System sets clock timer and synchrotimer.If inspection
It is true to measure two adjacent cycle signals, then takes out the clock timer meter between this two adjacent cycle signal zero passages
When the time, sequentially be stored in cycle time memory cell in, the cycle time memory cell can deposit 100 cycle times, be filled with
When be often stored in a cycle time, first remove the cycle time being stored at first, and calculate the flat of the cycle time of deposit
Average Tz is simultaneously preserved, and differentiates cycle signal to be identified using Tz values, to reduce the influence of power network frequency fluctuation, while using three
Individual point of screening reduces erroneous judgement possibility.
Three comparators are respectively used to three examination points, that is, screen point 0, screen point 1, screen point 2, as shown in Figure 1.In week
At the cycle zero passage of ripple positive half cycle ascent stage, that is, screen point 0 and voltage zero-crossing comparator is set, due to power network cycle negative half period quilt
Commutation diode is isolated, in order to improve accuracy of detection, in the signal input part series diode isolation again of voltage zero-crossing comparator
Negative half period, its reference voltage brings up to 10mv to 100mv from zero, and depending on the offset voltage of comparator, the reference voltage can profit
Obtained with diode drop through electric resistance partial pressure.Remaining two comparator is separately positioned on cycle positive half cycle ascent stage, crest voltage
35% to 50% place examination point 1 and 50% to 70% place examination point 2.
Cycle signal determining：After setting time opens interruption, clock timer resets and starts timing single-chip microcomputer, works as cycle
During voltage zero-cross, the output voltage upset for the voltage Zero-cross comparator Qi ﹙ V0 ﹚ for screening point 0 is arranged on, is produced in its voltage trailing edge
Interrupt, record its zero crossing break period Th0 and the Central Shanxi Plain is broken；Hereafter, electricity pressure comparator ﹙ V1 ﹚ at point 1 are screened in single-chip microcomputer scanning
Output voltage, when all wave voltages are reached to ﹙ V1 ﹚ threshold voltage, output voltage is overturn from high to low, when scanning records its upset
Between Th1；Same scanning record screens electricity pressure comparator ﹙ V2 ﹚ output voltage flip-flop transition Th2 at point 2, by Th0 and voltage zero-cross
Bi compare Qi ﹙ V0 ﹚ output voltage flip-flop transition setting value Ts0 makes comparisons；Th1 and electricity pressure comparator ﹙ V1 ﹚ output voltage are overturn
Time setting value Ts1 and Th2 makes comparisons respectively with electricity pressure comparator ﹙ V2 ﹚ output voltage flip-flop transition setting value Ts2, such as
For fruit in the range of allowable error, then the discriminator signal detected is true, is otherwise false.When above-mentioned judgement discriminator signal is true,
Calculate the clock timer meter between cycle signal zero passage when this cycle signal zero passage and an adjacent preceding discriminator signal are true
When time Tzu, it is made comparisons with the average value Tz of cycle time, the cycle if no more than setting cycle time error Tzv
Signal is true, at this moment preserves Tzu and takes 20ms to be added with synchrotimer timing time, the value deposit synchrotimer that will add up
In.
When clock timer starts timing with cycle voltage zero-cross, then timing to 16ms opens the break period between 18.5ms
Open interruption during setting value Tk, clock timer timing to 25ms to Central Shanxi Plain during pass break period setting value Tn between 27ms is broken.
After system boot, clock timer starts timing, when detecting first cycle voltage zero-cross, is arranged on examination
The voltage Zero-cross comparator Qi ﹙ V0 ﹚ of point 0 output voltage upset, interrupts so as to produce, takes out the time T0 of cycle voltage over zero
Preserve, clock timer is reset and starts timing, at this moment cycle time voltage crosses zero Th0 is 0, while single-chip microcomputer presses above-mentioned side
Method scans and judges discriminator signal.What it is due to detection is first cycle, and clock timer is started in cycle voltage zero-cross
Timing, its Th0, Th1 and Th2 value must add the difference that cycle time 20ms subtracts out break period setting value Tk, if
Three discriminator signals are true, and the time T0 of the cycle voltage over zero of taking-up is stored in synchrotimer as initial time, under
Once i.e. opening the break period for the first time takes Tk.Otherwise be fictitious time, now the clock timer time must add T0, continue to detect.
When detecting first and second adjacent cycle voltage zero-cross, due to not preserving the cycle time of detection,
Therefore the clock timer timing time twice between cycle signal zero passage is made comparisons with cycle time 20ms, judges cycle signal
Then it is to take 20ms to subtract Th0 difference to be added with synchrotimer timing time when being true, i.e., preserves the standard cycle time for the first time
20ms, its Th0 value need to be deducted, because when hereafter to detect cycle signal every time be true, by clock meter when opening interruption
When device reset after restart timing, and be that the standard cycle time is included in synchrotimer when opening interruption, open interruption
Afterwards clock timer reset, otherwise judge cycle signal be fictitious time, now the clock timer time must add T1=T0+Tk, after
It is continuous to detect first cycle again as stated above.After it is very to detect first cycle signal, recover above-described cycle
Signal determining.
If as shown in figure 1, detecting that cycle signal is false, the break period is opened next time and opens the break period at this
Afterwards, open interruptions during average value Tz through the cycle time that is delayed, and open interrupt after be delayed Tns when the Central Shanxi Plain break, when setting the Central Shanxi Plain to break
Between be when cycle signal screen point 0 when do not producing interruption, at this moment must be in the setting time point more than Ts0 allowable error scopes
Start to scan, and when scanning examination point 1 and examination point 2, voltage comparator output voltage does not produce upset, all in the Central Shanxi Plain breaks
The Central Shanxi Plain was broken and stopped scanning time Tns, and Tns is:
Tns=Tn-Tk
If it is true to detect cycle signal, next cycle opens break period Tks and is:
Tks=Tk+Th0
I.e. from opening for the first time after the break period takes Tk, clock timer is that timing opens interruption to Tks, and weight after resetting
New to start timing, timing is broken to Central Shanxi Plain during Tns, so that the synchrotimer time is corrected by cycle time voltage crosses zero.
Repeat said process.If the upper cycle signal detected is true, when this cycle judges, discriminator signal is
Vacation, or the cycle time detected exceed setting cycle time error Tzv, or clock meter compared with the average value Tz of cycle time
When device timing to close break period setting value Tns when, voltage Zero-cross comparator device ﹙ V0 ﹚ output voltages are not overturn, in not producing
Disconnected, then when clock timer timing is to Tns, the Central Shanxi Plain is broken, and at this moment remembers that not counting cycle N is 1 and stores, when opening interruption next time
Between be to open the break period in last time to open interruption after Tz, hereafter every time judge the cycle signal true and false, if false or this detection
Though discriminator signal is true but last time is false, then N is taken, will restore after N+1 and do not reset after interruption is opened in memory, clock timer
Continue timing, at this moment, next cycle of setting opens the break period and temporarily uses out break period interim setting value Tkz instead：
Tkz=(N+1) × Tz
Meanwhile next cycle closes break period temporary transient use instead and closes the break period interim setting value Tnz：
Tnz=Tkz+Tns
When clock timer to after Tkz, the time that point is screened in scanning can be obtained by simple computation.If at this moment examine
It is true to measure cycle signal, then takes out N in memory and preserve, and by N zero setting in memory, make clock timer clocking value Ts
For：(Ts-Tkz) → Ts, at this moment take (N+1) × 20ms value to be added in synchrotimer, and recover using setting value Tks with
Tns, recovered clock timer are reset after interruption is opened.
The system synchronization time be synchrotimer time, along with currently just timing clock timer time.
When judging to screen the point signal true and false, Th0, Th1, Th2 are by being set with voltage comparator output voltage flip-flop transition
Definite value Ts0, Ts1, Ts2 make comparisons see it is whether overproof, come judge screen point a signal true and false, can select：Th0, Th1, Th2 are
The cycle discriminator signal is true when true, or Th0 is true, while when one of Th1, Th2 are true, or when Th1, Th2 are true, should
Cycle discriminator signal is true, depending on to judging the different requirements of the cycle signal true and false.
If system fault, when N is more than a setting value between 25 to 70, due to main controller, fire extinguishing control in system
Device processed and each humiture collector, each smoke detector, its Tz value detected may be different with N values, and at this moment, power network frequency is tired out
Product error, may cause the synchrotimer time to be corrected when can not be by detecting true cycle signal, when detecting week
When ripple signal is true, directly it is added on using clocking value of the clock timer at Tkz in synchrotimer, to reduce system not
Lock in time, N is much smaller than 25 in the case of power network normal operation.
The cycle time error Tzv of permission and the flip-flop transition setting value of voltage comparator output voltage, by test assessment
Its average value is taken to obtain.
(4) illustrate：
Fig. 1 is that cycle screens data relationship schematic diagram；
Fig. 2 is cycle discriminator circuit structural representation；
Fig. 3 is the circuit structure block diagram of warehouse environment information gathering warning system.
(5) embodiment：
Fig. 3 is that warehouse environment information gathering alarm system circuit block diagram includes:The ﹚ of Zhu Kong Qi ﹙ 10, communications electronics are opened
Close the ﹚ of ﹙ 11, switch drives the ﹚ of dynamic model block ﹙ 12, SMS receives the wet degree of the ﹚ of 13 ﹚, SIM card ﹙ of transmitting apparatus ﹙ 14, temperature and passes the ﹚ of sense device ﹙ 15, cycle
Screen the electric ﹚ of road ﹙ 16, the ﹚ of humiture collection instrument ﹙ 17, sense cigarette and visit the ﹚ of survey device ﹙ 18, the ﹚ of cigarette biography sense device ﹙ 19, the fiery ﹚ of controller ﹙ 20 that go out, fire extinguishing
Qu moves the ﹚ of 21 ﹚, Mie fire She Bei ﹙ of electricity Lu ﹙ 22.The wherein ﹚ of communications electronics Kai Guan ﹙ 11, the ﹚ of switch Qu dynamic model Kuai ﹙ 12, cycle screen electricity Lu ﹙
Dan Pian Ji ﹙ U0 ﹚ in 16 ﹚ and Fig. 2, respectively included in the ﹚ of humiture collection Yi ﹙ 17, the ﹚ of 18 ﹚ and Zhu Kong Qi ﹙ of Gan Yan Tan Ce Qi ﹙ 10
In, the ﹚ of communications electronics Kai Guan ﹙ 11 use bidirectional triode thyristor as switch.
Fig. 2 is the structural representation that cycle screens the ﹚ of electricity Lu ﹙ 16, by：Shu enters electricity Lu ﹙ S0 ﹚, voltage zero-cross Jian and surveys Mo Kuai ﹙
V0 ﹚, electricity pressure comparator ﹙ V1 ﹚ and electricity pressure comparator ﹙ V2 ﹚ are formed.Dan Pian Ji ﹙ U0 ﹚ refer to that the ﹚ of humiture collection Yi ﹙ 17, sense cigarette are visited
Single-chip microcomputer in the ﹚ of the Ce Qi ﹙ 18 and ﹚ of Zhu Kong Qi ﹙ 10.Shu enters electricity Lu ﹙ S0 ﹚ and is used to mains AC voltage passing through resistance and two poles
The partial pressure of pipe, be converted to the suitably stable input voltage of voltage comparator.Dan Pian Ji ﹙ U0 ﹚ use 89C55WD, voltage zero-cross
Inspection surveys mould block ﹙ V0 ﹚, electricity pressure comparator ﹙ V1 ﹚, electricity pressure comparator ﹙ V2 ﹚ and uses special voltage comparator LM339, its benchmark
Voltage is come the threshold voltage of burning voltage comparator using the mu balanced circuit of voltage-stabiliser tube.
When mains AC voltage cycle signal zero passage, voltage zero-cross Jian surveys Mo Kuai ﹙ V0 ﹚ output voltage saltus step, single
Pian Ji ﹙ U0 ﹚ produce interruption, record the break period, while Dan Pian Ji ﹙ U0 ﹚ are additionally operable to scanning voltage Bi compare Qi ﹙ V1 ﹚ and voltage ratio
Compare Qi ﹙ V2 ﹚ output voltage, bound-time is recorded when output voltage saltus step, for judging power network cycle signal so as to producing
Raw lock in time.
Single chip computer89C51 realizes serial communication by I2C buses and master controller in SMS R-T unit, the monolithic
Machine 89C51 is connected also by serial line interface integrated circuit MAX232 with gsm module TC35i carries out data exchange, gsm module chip
TC35i is RS232 data ports, supports AT Command Set, wherein contain the control to SMS, single chip computer89C51 is by GSM moulds
Block sends a series of AT instructions, completes the initialization to gsm module and receiving short message.SMS transmitting-receiving uses TEXT patterns,
TEXT patterns are a kind of tactic patterns based on ASCII character.
Claims (2)
1. warehouse environment information gathering warning system, it is characterized in that, in main controller, Fire extinguisher and each humiture collection
Cycle discriminator circuit is respectively installed in instrument, each smoke detector, keeps system to keep strokes for producing lock in time, while at it
Each installation one communications electronics switch, switch drive module in telecommunication circuit, communication was controlled by lock in time, switch drive mould
Comparator input terminal in block, its reference voltage are 100Mv to 200Mv, are obtained using diode drop through electric resistance partial pressure, comparator
Output end be square-wave signal, it after making the diode rectification of positive connection that cycle positive half-wave turns on through generating corresponding electric power
Net week ripple bears the positive square-wave signal of half-wave, is connected to the I/O mouths of single-chip microcomputer, and single-chip microcomputer scanning performs communication behaviour when arriving positive square-wave signal
Make, the positive square-wave signal is additionally operable to drive communications electronics switch, therefore communications electronics switch turns off in cycle positive half-wave, cycle
Connected during negative half-wave；
SMS R-T unit is installed in system, using GSM network, communicated with receiving and dispatching short message mode；
Cycle discriminator circuit is the positive half cycle ascent stage using power network cycle, takes three to screen knowledge of the point realization to cycle signal
Do not judge, recycle the cycle time to establish lock in time, system sets clock timer and synchrotimer, if detecting phase
Two adjacent cycle signals are true, then take out the clock timer timing time between this two adjacent cycle signal zero passages
That is the cycle time, sequentially it is stored in cycle time memory cell, a cycle time is often stored in when being filled with 100 cycle time,
The cycle time being stored at first is first removed, and calculates the average value Tz of the cycle time of deposit and preserves, utilizes Tz values
Differentiate cycle signal to be identified；
Three comparators are respectively used to three examination points, that is, screen point 0, screen point 1, screen point 2, in the cycle positive half cycle ascent stage
Cycle zero passage at, that is, screen point 0 set a voltage zero-crossing comparator, concatenate two again in the signal input part of voltage zero-crossing comparator
Pole pipe isolates negative half period, and its reference voltage is 10mv to 100mv, and depending on the offset voltage of comparator, the reference voltage can profit
Obtained with diode drop through electric resistance partial pressure, remaining two comparator is separately positioned on cycle positive half cycle ascent stage, crest voltage
35% to 50% place examination point 1 and 50% to 70% place examination point 2；
Cycle signal determining process：After setting time opens interruption, clock timer resets and starts timing single-chip microcomputer, works as cycle
During voltage zero-cross, the output voltage upset for the voltage zero-crossing comparator for screening point 0 is arranged on, in the generation of its voltage trailing edge
It is disconnected, record its zero crossing break period Th0 and the Central Shanxi Plain is broken；Hereafter, first voltage Bi compare Qi ﹙ V1 ﹚ at point 1 are screened in single-chip microcomputer scanning
Output voltage, when all wave voltages reach first voltage than threshold voltage compared with device ﹙ V1 ﹚, output voltage is overturn from high to low,
Scanning records its flip-flop transition Th1；When same scanning record screens the upset of second voltage Bi compare Qi ﹙ V2 ﹚ output voltages at point 2
Between Th2, if the discriminator signal that the flip-flop transition Th1 and Th2 in the range of allowable error, is detected is true, otherwise for
Vacation, when above-mentioned judgement discriminator signal is true, calculate week when this cycle signal zero passage and an adjacent preceding discriminator signal are true
Clock timer timing time Tzu between ripple signal zero passage, it is made comparisons with the average value Tz of cycle time, if be no more than
Setting cycle time error Tzv, then cycle signal to be true, at this moment preserve Tzu and takes 20ms and synchrotimer timing time phase
Add, in the value deposit synchrotimer that will add up；
When clock timer starts timing with cycle voltage zero-cross, then timing to 16ms opens break period setting between 18.5ms
Open interruption during value Tk, clock timer timing to 25ms to Central Shanxi Plain during pass break period setting value Tn between 27ms is broken；
When detecting first cycle voltage zero-cross, the output voltage upset for the voltage zero-crossing comparator for screening point 0 is arranged on,
Interrupted so as to produce, the time T0 for taking out cycle voltage over zero is preserved, and clock timer is reset and starts timing, at this moment all
Wave voltage zero-crossing timing Th0 is 0, and single-chip microcomputer scans and judges discriminator signal, and its Th0, Th1 and Th2 value must add cycle
Time 20ms subtracts out break period setting value Tk difference, if three discriminator signals are true, the cycle voltage zero-cross of taking-up
The time T0 of point is stored in synchrotimer as initial time, and the break period of opening for detecting cycle voltage over zero next time takes
Tk, be otherwise fictitious time, now the clock timer time must add T0, continue to detect；
Then it is to take 20ms to subtract when it is true to detect first and second adjacent cycle voltage zero-cross judgement cycle signal
Th0 difference is added with synchrotimer timing time, i.e., preserves standard cycle time 20ms for the first time, need to deduct its Th0 value,
Because when hereafter to detect cycle signal every time be true, restart to count after clock timer is reset when opening interruption
When, and be that the standard cycle time is included in synchrotimer when opening interruption, clock timer is reset after opening interruption, otherwise
Judge cycle signal be fictitious time, now the clock timer time must add T1, T1=T0+Tk, again detection first cycle, when
Detection first cycle signal be very after, recover above-described cycle signal determining；
If it is false to detect cycle signal, open the break period next time after this opens the break period, through be delayed cycle when
Between average value Tz when open interruption, and open interrupt after be delayed Tns when the Central Shanxi Plain break, it is when cycle signal is discriminated to set and close the break period
Not Wei fictitious time, the break period Tns Central Shanxi Plain is disconnected and stop scanning, and Tns is closing:
Tns=Tn-Tk
If it is true to detect cycle signal, next cycle opens break period Tks and is:
Tks=Tk+Th0
I.e. from opening for the first time after the break period takes Tk, clock timer is that timing opens interruption to Tks, and is opened again after resetting
Beginning timing, timing are broken to Central Shanxi Plain during Tns, repeat above-mentioned cycle signal determining process, if the upper cycle letter detected
Number it is true, when this cycle judges, discriminator signal is false, then when clock timer timing is to Tns, the Central Shanxi Plain is broken, and at this moment remembers cycle
N is 1 and stored that it is to open the break period in last time to open interruption after Tz to open the break period next time, hereafter judges cycle every time
The signal true and false, though if false or this detection discriminator signal be false true last time, then take out stored N, and will be returned after N+1
It is stored in storage N memory, clock timer does not reset continuation timing after interruption is opened, and at this moment, next cycle of setting is opened
Break period temporarily uses out break period interim setting value Tkz instead：
Tkz=(N+1) × Tz
Meanwhile next cycle closes break period temporary transient use instead and closes the break period interim setting value Tnz：
Tnz=Tkz+Tns
When clock timer to after Tkz, if at this moment detecting that cycle signal is true, take out N in memory and preserve, and
By N zero setting in memory, the clock timer clocking value Ts is set to be：Ts-Tkz with the value for calculating results modification Ts, at this moment takes (N again
+ 1) × 20ms value is added in synchrotimer, and recovers to use setting value Tks and Tns, and recovered clock timer is opening interruption
After reset；
The system synchronization time be synchrotimer time, along with currently just timing clock timer time；
And select：Cycle discriminator signal is true when Th0, Th1, Th2 are true, or Th0 is true, while one of Th1, Th2 are
When true, or when Th1, Th2 are true, cycle discriminator signal is true, if N is more than a setting value between 25 to 70, is used
Clocking value of the clock timer at Tkz is directly added in synchrotimer.
2. warehouse environment information gathering warning system according to claim 1, it is characterised in that including:
The main ﹚ of control device ﹙ 10, communications electronics, which are opened, closes the ﹚ of ﹙ 11, the ﹚ of switch drive dynamic model block ﹙ 12, SMS receipts transmitting apparatus ﹙ 13 ﹚, SIM card ﹙
14 ﹚, the ﹚ of Wen Shi degree Chuan Gan Qi ﹙ 15, cycle screen the ﹚ of electricity Lu ﹙ 16, the ﹚ of humiture collection Yi ﹙ 17, the ﹚ of Gan Yan Tan Ce Qi ﹙ 18, cigarette sensing
The ﹚ of device ﹙ 19, the fiery ﹚ of controller ﹙ 20 that go out, the ﹚ of fire extinguishing Qu Dong electricity road ﹙ 21, the fire that goes out set the standby ﹚ of ﹙ 22, wherein single piece machine ﹙ U0 ﹚ and communications electronics
The ﹚ of Kai Guan ﹙ 11, the ﹚ of switch Qu dynamic model Kuai ﹙ 12, cycle screen the ﹚ of electricity Lu ﹙ 16 and are respectively included in the ﹚ of humiture collection Yi ﹙ 17, sense cigarette spy
In the ﹚ of the Ce Qi ﹙ 18 and ﹚ of Zhu Kong Qi ﹙ 10；
Cycle screen the ﹚ of electricity Lu ﹙ 16 by：Shu enter electricity Lu ﹙ S0 ﹚, voltage Zero-cross comparator Qi ﹙ V0 ﹚, screen point 1 at first voltage compare
Qi ﹙ V1 ﹚ are formed with second voltage Bi compare Qi ﹙ V2 ﹚ at point 2 are screened；Shu enters electricity Lu ﹙ S0 ﹚ and is used to mains AC electricity passing through electricity
Resistance and the partial pressure of diode, be converted to the input voltage of voltage comparator；Dan Pian Ji ﹙ U0 ﹚ use 89C55WD, voltage zero-cross ratio
Compare Qi ﹙ V0 ﹚, screen first voltage Bi compare Qi ﹙ V1 ﹚ at point 1, screen at point 2 second voltage Bi compare Qi ﹙ V2 ﹚ using special
Voltage comparator LM339, its reference voltage are come the threshold voltage of burning voltage comparator using the mu balanced circuit of voltage-stabiliser tube；
Single chip computer89C51 realizes serial communication by I2C buses and main controller in SMS R-T unit, the single-chip microcomputer
89C51 is connected also by serial port MAX232 with gsm module TC35i carries out data exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610451046.4A CN106023501B (en) | 2016-06-20 | 2016-06-20 | Warehouse environment information gathering warning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610451046.4A CN106023501B (en) | 2016-06-20 | 2016-06-20 | Warehouse environment information gathering warning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106023501A CN106023501A (en) | 2016-10-12 |
| CN106023501B true CN106023501B (en) | 2018-01-02 |
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| BRPI0515159A (en) * | 2004-09-10 | 2008-07-08 | Cooper Technologies Co | system and method for circuit protector monitoring and management |
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