CN108779973A - Slave parameter setting method based on RS485 communication systems - Google Patents
Slave parameter setting method based on RS485 communication systems Download PDFInfo
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- CN108779973A CN108779973A CN201580084721.8A CN201580084721A CN108779973A CN 108779973 A CN108779973 A CN 108779973A CN 201580084721 A CN201580084721 A CN 201580084721A CN 108779973 A CN108779973 A CN 108779973A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/04—Arrangements for ignition
- F42D1/045—Arrangements for electric ignition
- F42D1/05—Electric circuits for blasting
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Abstract
The invention discloses a kind of slave parameter setting methods based on RS485 communication systems in the quick-fried Control System Design technical field of the people.Method includes：Initiator sends address initialization instruction, and all network devices initialize oneself state；Initiator sends the address distribution comprising network device address and instructs, and network device stores network device address according to oneself state；Initiator sends the address lock instruction for including network device address, and network device changes oneself state according to network device address and sends answer signal to initiator；If the initiator receives the answer signal, the step of initiator sends address distribution instruction is returned.The present invention is in the initiation net connected using four-wire system, after network device accesses initiation net, network device address is arranged by initiator, without being network device writing address in advance, time and the cost of demolition site implantation of device have been saved, while having improved the flexibility of field device laying.
Description
The invention belongs to the quick-fried Control System Design technical field of the people more particularly to a kind of slave parameter setting methods based on RS485 communication system.
The slave connection type of existing electronic detonator initiating network mainly uses two-wire system, i.e. host as initiator is connect by two detonation buses with the slave of network device etc.In addition to this, there are also a kind of four-wire system connection types based on RS485 communication mechanism for electronic detonator initiating network, as shown in Figure 1.In this connection type, since blast area and initiation control place have larger distance (usually several hundred rice), need longer detonation bus, therefore initiator generally passes through two detonation buses and is connected with the network device (slave) in blast area, can reduce cost in this way.And the distance between each network device in blast area is then arranged according to the distance of the row of practical blast hole (or column or section or Kong Yukong), is usually no more than 10 meters.The daisy chain connection type of four-wire system is used between each network device, i.e., is connected between each network device by four lines.In four lines being connected with network device, two lines are in parallel with detonation bus (i.e. the A line and B line of RS485) respectively, are grounded after the parallel connection of line, and another is interconnection between the device of network.
Since the communication mode based on RS485 between existing initiator and network device is all to broadcast mode, therefore the communication between initiator and specific network device is realized, must make network device in advance has unique network address or network identity, in this way when initiator is communicated with specific network device, include the network address or network identity of specific network device in the instruction that initiator is sent, so that it may realize the purpose that initiator is communicated with specific network device.
But network address (or network identity) is written in the device of network in advance, it will increase the complexity of field conduct.Also the use of network device can be made to lose flexibility in addition, network address (or network identity) is written in the device of network in advance.For example, after network address (or network identity) is written to network device, due to certain
Reason does not use network device.By the network, device takes another demolition site in use, needing to re-write network address (or network identity).
For above situation, network address (or network identity) set-up mode of the network device connected to four-wire system is needed to improve, to solve the problems, such as that it exists in use.
Summary of the invention
The object of the present invention is to provide a kind of slave parameter setting methods based on RS485 communication system, and the parameter setting of the network device of the electronic detonator initiating network for solving the problems, such as the four-wire system connection type based on RS485 communication system exists.
To achieve the goals above, technical solution proposed by the present invention is a kind of slave parameter setting method based on RS485 communication system, which is characterized in that the described method includes:
Step 1: initiator sends address initialization instruction, and all network devices initialize oneself state；
Step 2: initiator sends the address distribution comprising network device address and instructs, and network device stores network device address according to oneself state；
Step 3: initiator sends the address lock instruction comprising network device address, and network device modifies oneself state according to network device address and sends answer signal to initiator；
Step 4: if the initiator receives the answer signal, return step 2.
The oneself state includes input state, address lock state and output state.
All network device initialization oneself states are specifically:
First network device by input state be set as can input state, set address lock state to unlocked state and set output state to can not output state；
Remaining network device by input state be set as can not input state, set address lock state to unlocked state and set output state to can not output state.
The network device stores network device address according to oneself state:
When the input state of the network device be can input state and address lock state be unlocked state when, the network device extracts the network device address in the address distribution instruction and stores the network
Device address.
The network device modifies oneself state according to network device address:
The network device judges whether network device address in the address lock instruction and the network device address itself stored are identical, if the network device address in the address lock instruction is identical as the network device address that itself is stored, address lock state is revised as locked state and output state is revised as exportable state by the network device.
Output state is revised as exportable state by the network device to be led to the input state of the next network device being connected with the network device be modified to can input state.
The method further includes, detonate extension parameter setting the step of, specifically:
The initiator sends the setting instruction including network device address and detonation extension parameter corresponding with network device address；
The network device determines whether to store the detonation extension parameter according to whether the network device address of network device address and itself storage in the setting instruction is identical.
The address distribution instruction further comprises detonation extension parameter corresponding with network device address.
The network device stores network device address according to oneself state further include:
When the input state of the network device be can input state and address lock state be unlocked state when, the network device extracts the detonation extension parameter corresponding with network device address in the address distribution instruction and stores the detonation extension parameter.
The detonation extension parameter delays to delay between hole including starting, or including extension table.
The present invention is in the initiation net connected using four-wire system, after network device accesses initiation net, device address in network is arranged by initiator, without being in advance network device writing address, time and the cost of demolition site implantation of device have been saved, while having improved the flexibility of field device laying.
Fig. 1 is four-wire system initiation net connection schematic diagram.
Fig. 2 is the initiation net connection schematic diagram provided according to the present invention；
Fig. 3 is the flow chart according to the method provided by the invention of one embodiment；
Fig. 4 is network device and electric detonator connection schematic diagram；
Fig. 5 is the flow chart according to the method provided by the invention of another embodiment；
Fig. 6 a is that equal difference delays that schematic diagram is arranged；
Fig. 6 b is extension parameter list.
With reference to the accompanying drawing, it elaborates to preferred embodiment.It is emphasized that following the description is only exemplary, the range and its application being not intended to be limiting of the invention.
In the present invention, term " slave " refers to the equipment with network device or repeater function.
In the initiation net based on RS485 communication system, initiator is based on RS485 communication protocol and sends instruction to initiation net, which is to broadcast instruction, and all network devices in network can be received by the instruction.But network device is unaware of whether the instruction is intended for oneself.It therefore, usually to include the unique attribute, such as address, ID etc. of the specific network device in order to which the network device determined with some is communicated, in the instruction that initiator is sent.Technological difficulties of the invention are that, when unique attribute being even not present in the device of network, can not realize two-way communication with initiator.
In the present invention, three states of network device, respectively input state, address lock state and output state are set.Network device is determined whether to receive the dependent instruction of initiator by these three states and whether carries out response to initiator.In addition, these three states of network device can be realized by hardware and/or software.Certainly, the present invention is not limited thereto, and in the case where not departing from the spiritual guidance for the specific embodiment that the present invention is provided below, those skilled in the art can also use other modes of texturing.
Fig. 2 is the initiation net connection schematic diagram provided according to invention.In this embodiment, network device is linked in sequence by four-wire system mode, two of them line is connected in parallel in the detonation bus (the A line and B line of RAS) of initiator offer, it is grounded after one line is in parallel, it is interconnection there are also a line, for connecting the output end of upper network device and the input terminal of next network device.
In embodiment provided by the invention, input shape is indicated with ADDR, LOCK and NEXT respectively
State, address lock state and output state.As ADDR=1, expression input state is can input state；As ADDR=0, expression input state is can not input state.As LOCK=1, expression address lock state is locked state；As LOCK=0, expression address lock state is unlocked state.As NEXT=1, expression output state is exportable state；As NEXT=0, expression output state is can not output state.
Embodiment 1
Fig. 3 is the flow chart according to the method provided by the invention of one embodiment.As shown in figure 3, a kind of slave parameter setting method based on RS485 communication system provided by the invention includes:
Step 101: initiator sends address initialization instruction, and all network devices initialize oneself state.
Since the instruction that initiator is sent is to broadcast instruction, each network device can be received by address initialization instruction.After network device receives address initialization instruction, oneself state is initialized.
In the present embodiment, the oneself state of network device includes input state, address lock state and output state, therefore device initialization oneself state in network is specifically: the first network device by input state be set as can input state (i.e. ADDR=1), set address lock state to unlocked state (i.e. LOCK=0) and set output state to can not output state (i.e. NEXT=0).Remaining network device by input state be set as can not input state (i.e. ADDR=0), set address lock state to unlocked state (i.e. NEXT=0) and set output state to can not output state (i.e. NEXT=0).
In the above description, the first network device is in initiation net, along detonation bus and initiator apart from nearest network device, such as the first network device in Fig. 2.It should be noted that whether network device accesses interconnection to determine whether being the first network device by input port.Due to there is no network device before the first network device, so its input port does not access interconnection.And according to daisy chain connection type, remaining network device centainly passes through input port and is connected with network device before.
Step 102: initiator sends the address distribution comprising network device address and instructs, and network device stores electric detonator address according to oneself state.
In the present embodiment, it is assumed that network device address is 0x30.And address distribution instruction is also to broadcast instruction,
And each network device can be received by address distribution instruction.In order to make a determining network device store the network device address, the present invention takes following means: when the input state of network device be can input state (i.e. ADDR=1) and address lock state be unlocked state (i.e. LOCK=0) when, the network device extract address distribution instruct in network device address and store the network device address of extraction.
Since in initial setting process, only the first network device meets above-mentioned condition (i.e. ADDR=1 and LOCK=0), and the ADDR=0 of other network devices, so only the first network device extracts and the network device address in storage address distribution instruction.
Step 103: initiator sends the address lock instruction comprising network device address, and network device modifies oneself state according to network device address and sends answer signal to initiator.
In this step, the network device address in the lock instruction of address that initiator is sent, in previous step (step 102), the network device address in address distribution instruction is identical, i.e. 0x30.
The purpose of the step is that modification has just stored the parameter of the network device of network device address.And the network device by just storing network device address, modify the input state for the next network device being attached thereto.
The process is specifically: network device judges whether network device address in the lock instruction of address and the network device address itself stored are identical.Such as, network device address in the lock instruction of address is 0x30, the network device address of first network device itself storage is 0x30, the two is identical, then address lock state is revised as locked state (i.e. LOCK=1) and output state is revised as exportable state (i.e. NEXT=1) by the first network device.After the output state of the first network device is revised as exportable state (i.e. NEXT=1), due to the presence of interconnection, so that be modified to can input state (i.e. ADDR=1) for the input state for the second network device being connected with the first network device.At this point, ADDR=1, LOCK=1 and the NEXT=1 of the first network device.And the ADDR=1 and LOCK=0 of the second network device.This is just to be circularly set the address of the second network device next time to get ready.
After having modified setting, which will send answer signal to initiator, and instruction initiator modification is completed.
Step 104: if initiator receives answer signal, return step 102；If initiator does not receive answer signal, terminate.
If initiator receives answer signal, illustrates to there is network device to store network device address and have modified oneself state, return step 102, carry out the setting of next network device at this time.If initiator does not receive answer signal, illustrate that setting completed for all network devices.
After return step 102, initiator sends the address distribution that another includes network device address (such as 0x40) and instructs.Due to the input state for the network device (such as the first network device) for being previously stored network device address be can input state (i.e. ADDR=1), address lock state be locked state (i.e. LOCK=1), output state is exportable state (i.e. NEXT=1), the network device for being previously stored network device address no longer responds the address distribution and instructs and carry out any movement.And be previously stored next network device (such as the second network device) of the network device of network device address due to input state be can input state (i.e. ADDR=1), address lock state be unlocked state (i.e. LOCK=0), the next network device for being previously stored the network device of network device address repeats the above steps 102-103.Wherein the first network device in above-mentioned steps 102 and 103 accordingly becomes the second network device, and the second network device accordingly becomes third network device.Address 0x30 in above-mentioned steps 102 and 103 also correspondingly changes new address such as 0x40 into.And so on, complete the address storage of all network devices.It should be noted that above-mentioned steps of the invention ensure in each cyclic process, only one network device meets the condition of ADDR=1 and LOCK=0 in all network devices, so that it is guaranteed that circulation is for a determining network device setting address every time.
In the above method, after all network devices store network device address, the step of may also include detonation extension parameter setting (step 105), specifically: initiator sends the setting instruction including network device address and detonation extension parameter corresponding with network device address；Network device according to the setting instruct in network device address and itself storage network device address it is whether identical come determine whether storage detonation extension parameter.When the network device address in setting instruction is identical as the network device address that network device itself stores, network device stores detonation extension parameter corresponding with the network device address.
Since each network device is connected with a detonation branch, and branch road several electric detonators (such as Fig. 4) in parallel of detonating, therefore network device will be responsible for all electric detonators setting detonation extension of the detonation branch road.Extension parameter of detonating is actually parameter relevant to the detonation detonation extension of all electric detonators of branch road.It rises
Quick-fried extension parameter can be starting and delay to delay between hole, or detonation extension parameter can be extension table.The extension setting of electric detonator will be described below.
Embodiment 2
Setting detonation extension is different after all network devices store network device address from embodiment 1, this implementation is while each network device stores network device address, storage detonation extension parameter.
Fig. 5 is the flow chart according to the method provided by the invention of one embodiment.As shown in figure 5, a kind of slave parameter setting method based on RS485 communication system provided by the invention includes:
Step 201: initiator sends address initialization instruction, and all network devices initialize oneself state.
After network device receives address initialization instruction, oneself state is initialized.Specifically: ADDR=1, LOCK=0 and NEXT=0 is arranged in the first network device.ADDR=0, NEXT=0 and NEXT=0 is arranged in remaining network device.
Step 202: initiator sends the address distribution instruction comprising network device address and detonation extension parameter corresponding with network device address, and network device stores network device address and detonation extension parameter according to oneself state.
When the input state of network device is ADDR=1 and LOCK=0, which extracts network device address and detonation extension parameter corresponding with the network device address in address distribution instruction, and stores network device address and the detonation extension parameter of extraction.In the present embodiment, it is assumed that the electric detonator address is 0x30.
Step 203: initiator sends the address lock instruction comprising network device address, and network device modifies oneself state according to electric detonator address and sends answer signal to initiator.
In this step, the network device address in the lock instruction of address that initiator is sent, in previous step (step 202), the network device address in address distribution instruction is identical, i.e. 0x30.
The purpose of the step is that modification has just stored the parameter of the network device of network device address.And the network device by just storing network device address, modify the input state for the next network device being attached thereto.The concrete modification of network device state is identical as step 103.
After having modified setting, which will send answer signal to initiator, and instruction initiator modification is completed.
Step 204: if initiator receives answer signal, return step 102；If initiator is not received
To answer signal, then terminate.
After all network devices store network device address and detonation extension parameter corresponding with network device address, this method terminates.
Fig. 4 is now returned to, after address is arranged in each network device and stores detonation extension parameter, network device can be that parameter is arranged in electric detonator in parallel in the detonation branch being connected with itself.
First with detonate delay parameter for starting delay and hole between delay to be illustrated.Assuming that starting delays to be 10ms, delay to be 5ms between hole.In some type of explosion, such as in plane explosion, the detonation extension difference between an explosive holes may be identical, i.e. equal difference extension.Such as, in Fig. 6 a, detonation extension difference between each blast hole in row is 5ms, the detonation of first in row blast hole delay (starting is delayed) be 10ms, then the detonation extension of each blast hole in the explosive holes be successively 10ms, 15ms, 20ms ....
Since electric detonator is sequence and to be connected to detonation branch (directly in parallel or by unshowned connector) one by one, therefore when an electric detonator access detonation branch, can network address be arranged for it rapidly in network device, such as, when first electric detonator accesses network, network device is that address 0x30:001 is arranged in the electric detonator.Wherein, " 0x30 " is network device address, and " 001 " is serial number of the electric detonator in detonation branch.Based on this, each electric detonator in initiation net can get a unique address.
After network device each electric detonator setting network address in parallel on for its branch road of detonating, it can delay according to detonation is written for each electric detonator.Such as, electric detonator corresponding for third blast hole, its address is 0x30:003, and network device is 10+ (3-1) * 2=20ms according to the absolute detonation extension (true detonation extension) that extension (5ms) and serial number 3 between starting extension (10ms), hole calculate the electric detonator at this time.So network device sends the detonation comprising network address (0x30:003) and true detonation extension 20ms and delays setting instruction electron detonator, and electric detonator stores true detonation extension after receiving the instruction.
Certainly, in the above embodiments, true detonation delays to be calculated by electric detonator, i.e. starting is only delayed to delay to be sent between hole electric detonator by network device, electric detonator delayed according to serial number, starting and
Delay to calculate between hole and stores true extension.
Certainly, in the explosion of other types, the detonation extension difference between an explosive holes may be it is irregular, at this time detonate extension parameter can be extension parameter list, as shown in Figure 6 b.In the table shown in Fig. 6 b, left side field is the serial number of electric detonator, and right side field is that detonation is delayed.Network device is sent to it serial number and detonation is delayed according to the sequence of the electric detonator of access detonation branch.
In the present invention, setting up and or changing for input state, address lock state and output state can be by hardware and/or software realization.By taking hardware realization as an example, the setting of input state, address lock state and output state is briefly described.It include three voltage control modules, respectively input state voltage control module, address lock state voltage control module and output state voltage control module in each row's extension control module.
In initialization, first network device detects that input port does not have interconnection, then input state voltage control module becomes high level, i.e. ADDR=1, and address lock state voltage control module and output state voltage control module become low level, i.e. LOCK=0 and NEXT=0.Each voltage control module of remaining network device exports low level, i.e. ADDR=0, LOCK=0 and NEXT=0.
After the first network device stores network device address, when receiving address lock instruction, the address lock state voltage control module and output state voltage control module of the first network device become high level, i.e. LOCK=1 and NEXT=1.Since the input port of the second network device is connected by interconnection with the output port of the first network device, in the NEXT=1 of the first network device, the input state voltage control module of the second network device becomes high level, i.e. ADDR=1.According in this way, each voltage control module of each network device exports low level or high level, to realize setting up and or changing for input state, address lock state and output state.
Input state, address lock state and the setting up and or changing for output state of network device can also be by software realizations, these are all technological means well known to those skilled in the art, and the present invention repeats no more.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, and anyone skilled in the art in the technical scope disclosed by the present invention, can be easily
The change or replacement expected, should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (10)
- A kind of slave parameter setting method based on RS485 communication system, which is characterized in that the described method includes:Step 1: initiator sends address initialization instruction, and all network devices initialize oneself state；Step 2: initiator sends the address distribution comprising network device address and instructs, and network device stores network device address according to oneself state；Step 3: initiator sends the address lock instruction comprising network device address, and network device modifies oneself state according to network device address and sends answer signal to initiator；Step 4: if the initiator receives the answer signal, return step 2.
- According to the method described in claim 1, it is characterized in that the oneself state includes input state, address lock state and output state.
- According to the method described in claim 2, it is characterized in that all network device initialization oneself states are specifically:First network device by input state be set as can input state, set address lock state to unlocked state and set output state to can not output state；Remaining network device by input state be set as can not input state, set address lock state to unlocked state and set output state to can not output state.
- According to the method described in claim 3, it is characterized in that the network device is specifically according to oneself state storage network device address:When the input state of the network device be can input state and address lock state be unlocked state when, the network device extracts the network device address in the address distribution instruction and stores network device address.
- According to the method described in claim 4, it is characterized in that the network device is specifically according to network device address modification oneself state:The network device judges whether network device address in the address lock instruction and the network device address itself stored are identical, if the network device address in the address lock instruction is identical as the network device address that itself is stored, address lock state is revised as locked state and output state is revised as exportable state by the network device.
- According to the method described in claim 5, it is characterized in that output state is revised as exportable state by the network device leads to the input state of the next network device being connected with the network device be modified to can input state.
- According to the method described in claim 6, it is characterized in that the method further includes, detonate extension parameter setting the step of, specifically:The initiator sends the setting instruction including network device address and detonation extension parameter corresponding with network device address；The network device determines whether to store the detonation extension parameter according to whether the network device address of network device address and itself storage in the setting instruction is identical.
- According to the method described in claim 6, it is characterized in that address distribution instruction further comprises detonation extension parameter corresponding with network device address.
- According to the method described in claim 8, it is characterized in that the network device stores network device address according to oneself state further include:When the input state of the network device be can input state and address lock state be unlocked state when, the network device extracts the detonation extension parameter corresponding with network device address in the address distribution instruction and stores the detonation extension parameter.
- The method according to any one of claim 7-9, it is characterised in that the detonation extension parameter delays to delay between hole including starting, or including extension table.
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| PCT/CN2015/000890 WO2017096498A1 (en) | 2015-12-11 | 2015-12-11 | Method for setting parameter of slave based on rs485 communication system |
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| CN112013723A (en) * | 2020-09-03 | 2020-12-01 | 中国人民解放军63921部队 | Fireworks setting-off control device |
| CN112129175A (en) * | 2020-08-18 | 2020-12-25 | 重庆云铭科技股份有限公司 | Device and method for controlling detonation by cascade of detonators |
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| US20120137914A1 (en) * | 2008-12-31 | 2012-06-07 | Pacific Scientific Energetic Materials | Methods and systems for defining addresses for pyrotechnic devices networked in an electronic ordnance system |
| CN103115536A (en) * | 2013-02-08 | 2013-05-22 | 前进民爆股份有限公司 | Digital electronic detonator large-scale priming system for engineering blasting and method thereof |
| CN103307940A (en) * | 2013-06-28 | 2013-09-18 | 北京丹芯灵创科技有限公司 | Electronic detonator detonation control network and electronic detonator detonation control method |
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2015
- 2015-12-11 WO PCT/CN2015/000890 patent/WO2017096498A1/en active Application Filing
- 2015-12-11 CN CN201580084721.8A patent/CN108779973A/en active Pending
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| US20120137914A1 (en) * | 2008-12-31 | 2012-06-07 | Pacific Scientific Energetic Materials | Methods and systems for defining addresses for pyrotechnic devices networked in an electronic ordnance system |
| CN103115536A (en) * | 2013-02-08 | 2013-05-22 | 前进民爆股份有限公司 | Digital electronic detonator large-scale priming system for engineering blasting and method thereof |
| CN103307940A (en) * | 2013-06-28 | 2013-09-18 | 北京丹芯灵创科技有限公司 | Electronic detonator detonation control network and electronic detonator detonation control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112129175A (en) * | 2020-08-18 | 2020-12-25 | 重庆云铭科技股份有限公司 | Device and method for controlling detonation by cascade of detonators |
| CN112013723A (en) * | 2020-09-03 | 2020-12-01 | 中国人民解放军63921部队 | Fireworks setting-off control device |
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| WO2017096498A1 (en) | 2017-06-15 |
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Application publication date: 20181109 |