CN103279723B - A kind of card reader and its communication means - Google Patents
A kind of card reader and its communication means Download PDFInfo
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- CN103279723B CN103279723B CN201310143023.3A CN201310143023A CN103279723B CN 103279723 B CN103279723 B CN 103279723B CN 201310143023 A CN201310143023 A CN 201310143023A CN 103279723 B CN103279723 B CN 103279723B
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Abstract
The invention belongs to sensor network technology field, a kind of card reader is particularly disclosed, including：First communication module and connected second communication module；The first communication module, for entering row data communication with upper layer device, and receives bottom layer node information using the first wireless channel；The second communication module, for continuing to send broadcast message to bottom layer node using second wireless channel.And the communication mode of the card reader.By the card reader, it is ensured that the timely transmission on upper strata and information, and the information of underlying device transmission is avoided to a certain extent will not lose.
Description
Technical field
The application is related to radio network technique field, card reader and communication in more particularly to a kind of wireless sensor network
Method.
Background technology
Wireless sensor network, the data acquisition of bottom is widely used in due to the characteristic of low power consumption and low cost.Generally
The bottom-up information node of wireless sensor network is powered frequently with battery, for control node power consumption, is often closed using idle
Wireless data transceiving, with the low-power consumption long-play of guarantee information node.Which results in each information node cannot real-time Communication for Power,
Also limit the information transmit-receive mode of information node.The presence of this distributed way of wireless sensor network, simultaneously because respectively
The time of individual node is unable to precise synchronization, leads to not accurate decision node and wakes up, so that the reliability of communication cannot
Ensure.
In order to solve the above problems, generally using the data after collection, sending method periodically sends from bottom to up at present, this
The mode of kind avoids the wake-up work of dormancy node, realizes effectively collection transmission.But it has substantially in actual use
Shortcoming, i.e., it upper layer device cannot be realized to the transmission of the effective information of bottom dormancy node.Once upper strata needs to do bottom
Operation, transmission data when, because upper layer device cannot know when when dormancy wakes up underlying device, this communication mode just without
Method is performed or extremely unreliable.Especially when emergency is met, it is impossible to ensure timely communication of the upper layer device to underlying device,
Great property and personal casualty loss will be caused.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of card reader, it is ensured that with upper layer device and to underlying device and
Shi Tongxin.
In order to solve the above-mentioned technical problem, the present invention proposes a kind of card reader, and it includes：First communication module and phase
Second communication module even；
The first communication module, for entering row data communication with upper layer device, and is received using the first wireless channel
Bottom layer node information；
The second communication module, for continuing to send broadcast message to bottom layer node using second wireless channel.
Wherein, the first communication module and the second communication module include the first toggle switch, the second dial-up respectively
Switch；
First toggle switch, the device number for indicating the first communication module；
Second toggle switch, for demarcating the second communication module region.
It is preferred that the first communication module and the second communication module are respectively comprising first memory, the second storage
Device；
The first memory, for storing the data processed needed for the first communication module；
The second memory, for storing the broadcast data for sending.
It is preferred that the first communication module contains real-time clock, the specific time for identifying the information that receives.
It is preferred that also include the data processing module that is connected with the first communication module, and with the data processing mould
The connected display module of block；
The data processing module, for processing the data that the first communication module is received, bottom is set
Standby message loop is sent to the display module；
The display module, for circulating display underlying device information.
Present invention also offers a kind of communication means of card reader, comprise the following steps：
Step A, first communication module receives the data message of upper layer device, and intercepts bottom using first communication channel
The data message of equipment, the data message that will be received is stored in first memory；Process described by the way of poll
Data in first memory；
Step B, second communication module continues to send broadcast message to underlying device using the second communication channel；
Wherein first communication channel and the second communication channel are communication, and the two channel is different.
Wherein, the step A is specifically included：
The first communication module processes the upper layer device data letter for receiving respectively by the way of recursive call treatment
Breath and underlying device data message, until the data message of first memory module and the second memory module has all been processed
Finish；
Meanwhile, the data message of upper layer device is intercepted using wired connection mode, and bottom is intercepted using first communication channel
The data message of layer equipment；
When receiving any data information, then current treatment operation is temporarily interrupted, by the data information memory first
After memory, the treatment operation before return.
It is preferred that when the first communication module processes the data message of the upper layer device, comprising the following steps：
The first communication module reads the toggle switch of itself, and destination host is determined whether according to toggle switch value；
It is then to receive the data message, after the completion of receiving and processing, is completed to the upper layer device feedback reception；
It is no, then abandon the data message.
It is preferred that when the second communication module sends broadcast message to the underlying device, second group according to itself
Code switch, region is identified in the broadcast message for sending, and region is recognized for the underlying device.
If it is preferred that the first communication module receive be the upper layer device control underlying device broadcast letter
Breath, then be switched to the first communication channel and the second communication channel identical radio communication by the first communication module
Channel, the broadcast message is sent to the second communication module, after sending successfully, is immediately switched to the first communication channel
Original wireless communication channel.
It is preferred that the step A also includes, the data letter of the underlying device that the first communication module will be received
Breath is sent to the upper layer device；
And/or the data message in the first memory is called by the data processing module, by after processing locality,
Data output is carried out by display module.
It is preferred that the step A also includes, the first communication module is received according to internal real-time clock, mark
The underlying device data message, carry out selective reception according to Preset Time rule.
The present invention provide card reader and communication means, make full use of the binary channels of card reader to set, with upper layer device and
Underlying device communicates, and communication channel does not interfere with each other, and improves the accuracy rate of communication.And underlying device can be ensured extreme
Wakeup time in can carry out data exchange with card reader, it is to avoid the transmission stability of underlying device information.
Brief description of the drawings
Fig. 1 is the card reader and external connection schematic diagram of the embodiment of the present invention；
Fig. 2 is the card reader structure schematic diagram of another embodiment of the present invention；
Fig. 3 is the flow chart of embodiment of the present invention second communication module；
Fig. 4 is the flow chart of embodiment of the present invention first communication module.
Specific embodiment
It is below in conjunction with the accompanying drawings and specific real to enable above-mentioned purpose, the feature and advantage of the application more obvious understandable
Mode is applied to be described in further detail the application.
Each embodiment in this specification is described by the way of progressive, what each embodiment was stressed be with
The difference of other embodiment, between each embodiment identical similar part mutually referring to.For device embodiment
For, because it is substantially similar to embodiment of the method, so description is fairly simple, referring to the portion of embodiment of the method in place of correlation
Defend oneself bright.
Reference picture 1, Fig. 2 and Fig. 3, a kind of communication means of card reader, comprise the following steps：
Step A, first communication module receives the data message of upper layer device, and intercepts bottom using first communication channel
The data message of equipment, the data message that will be received is stored in first memory；Process described by the way of poll
Data in first memory.
Specifically, the first communication module uses wired connection mode, for example with RS485 wired communication protocols, detects
The data message of upper layer device is listened, and intercepts the data message of underlying device using first communication channel simultaneously, below by first
Communication channel is represented with CH1.
Wherein, the first communication module processes the upper layer device number for receiving respectively by the way of recursive call treatment
It is believed that breath and underlying device data message, until the data message in first memory module is all disposed.It is preferred that
Different data areas can be distinguished in the first memory according to specifically used rule, for example, can be divided into upper layer device
Buffer queue region, and underlying device buffer queue region, and set up respectively accordingly according to various data categories
Storage region etc..Subregion for memory belongs to prior art, will not be repeated here.
In data processing, if receive any data information, current treatment operation is temporarily interrupted, by this
After first memory, the treatment before return is operated data information memory.
When carrying out upper layer device processing data information such as recursive call to wired connection mode, system can be deposited to described first
The buffer queue of the wire communication in storage module is detected, if there is data, then by its dissection process, until knot
Beam.
When intercepting operation such as recursive call to first communication channel, system can be to channel sense in first memory module
Buffer queue detected, if there is data, then by its dissection process, and is added into the first storage according to classification
In device.
If current first communication module processes the upper layer device data message by the way of recursive call,
Listen to underlying device and have sent a data information, then place of the now first communication module pause to first volume device data information
Reason, first receives the data message of the underlying device, and is temporarily stored into the first memory module, then recovers originally to set upper strata again
The processing procedure of standby data message, the situation of missing data information is avoided so as to reach.When in Treated Base number of devices it is believed that
When breath, similarly, current operation can be also interrupted, first carry out the reception work of upper layer device, will not be repeated here.
Wherein, when the data message of the first communication module treatment upper layer device, comprise the following steps：
The first communication module reads the toggle switch of itself, for example, the toggle switch of itself is four, is shown as
0001, then it represents that this card reader is the card reader marked as 1, if the data that upper layer device sends are to the Card Reader marked as 3
The data that device sends, the then data that first communication module sends the upper layer device are abandoned, if if the number of upper layer device transmission
It is anti-to the upper layer device after finishing receiving according to being to the data of the card reader transmission marked as 1, then to receive the data message
Feedback is finished receiving.By the setting of toggle switch in the first communication module, upper layer device hair data by mistake can be avoided, reached
Card reader can be to the accurate treatment of upper layer data.
Additionally, when the second communication module sends broadcast message to the underlying device, the second dial-up according to itself
Switch, identifies the region of this card reader in the broadcast message for sending, and card reader is recognized for the underlying device
Region, prevent underlying device in a short time, repeat to send identical information, it is to avoid a large amount of identical letters of card reader treatment
Breath, improves the treatment effeciency of card reader.
Step B, second communication module persistently thinks that underlying device sends broadcast message using the second communication channel, below by the
Two communication channels are represented with CH2.Second communication module is continual to send broadcast message to underlying device, when underlying device is called out
When waking up, the broadcast message of card reader can be received with the very first time, and then the data message of underlying device is sent to institute in time
State first communication module, it is to avoid when underlying device wakes up, it is impossible to which data are uploaded to the problem of card reader in time.
Another embodiment, the broadcast letter of underlying device need to be updated when the first communication module of card reader receives upper layer device
During breath, its wireless channel CH1 can be immediately switched to the first communication module CH2 wireless communications of the second communication module
Road, the broadcast message of the renewal is sent to the second communication module, and the second communication module has correctly received the wide of renewal
After broadcasting information, store into second memory, continue to send the broadcast message of the renewal to the underlying device, and described first
Communication module then switches back immediately to wireless channel CH1 originally.Communicated above by first communication module in card reader and second
The communication mode of module, it is ensured that the timely transmission of information, and avoid to a certain extent underlying device transmission information not
Can lose.
Another embodiment, reference picture 2, the step A also includes, the bottom that the first communication module will be received
The data message of equipment is sent to the upper layer device；
And/or the data message in the first memory is called by the data processing module, by after processing locality,
Data output is carried out by display module.
Additionally, the step A also includes, the first communication module identifies what is received according to internal real-time clock
The data message of the underlying device, carries out data message and selectively receives according to Preset Time rule.For example, card reader first
Secondary when receiving underlying device information, the real-time clock identified time according to first communication module is 17:00:00, the information is filled out
It is charged in the bottom data information for receiving, and the information is preserved to first memory.
If receive underlying device information for the second time, the real-time clock identified time according to first communication module is 17:00:
30.If card reader is no longer preserved according to the information received in Preset Time rule regulation same minute, the first communication mould
Block can be information in same minute due to the information, and data message is abandoned, and no longer preserve to the described first storage
Device.
If third time receives underlying device information, the time is 17:01:30, meet depositing for card reader Preset Time rule
Storage setting, then by this information Store.
Set by this, card reader can be avoided to receive too many identical underlying device information, saved storage empty
Between.
Referring to Figures 1 and 2, a kind of card reader, including：First communication module and connected second communication module；
The first communication module, for entering row data communication with upper layer device, and is received using the first wireless channel
Bottom layer node information；
The second communication module, for continuing to send broadcast message to bottom layer node using second wireless channel.
Wherein, the first communication module and the second communication module include the first toggle switch, the second dial-up respectively
Switch；
First toggle switch, the device number for indicating the first communication module；
Second toggle switch, for demarcating the second communication module region.
Wherein, the first communication module and the second communication module include first memory, second memory respectively；
The first memory, for storing the data processed needed for the first communication module；
The second memory, for storing the broadcast data for sending.
It is preferred that the first communication module contains real-time clock, the specific time for identifying the information that receives.
It is preferred that also include the data processing module that is connected with the first communication module, and with the data processing mould
The connected display module of block；
The data processing module, for processing the data that the first communication module is received, transmission processe
Data afterwards are to the display module；
The display module, for showing specific data message.
A kind of data fusion method provided herein and device are described in detail above, it is used herein
Specific case is set forth to the principle and implementation method of the application, and the explanation of above example is only intended to help and understands this
The method and its core concept of application；Simultaneously for those of ordinary skill in the art, according to the thought of the application, specific
Be will change in implementation method and range of application, in sum, this specification content should not be construed as to the application's
Limitation.
Claims (2)
1. a kind of communication means of card reader,
Including a kind of card reader, the card reader includes：First communication module and connected second communication module；
The first communication module, for entering row data communication with upper layer device, and receives bottom using the first wireless channel
Nodal information；
The second communication module, for continuing to send broadcast message to bottom layer node using second wireless channel；
The first communication module and the second communication module include the first toggle switch, the second toggle switch respectively；
First toggle switch, the device number for indicating the first communication module；
Second toggle switch, for demarcating the second communication module region；
The first communication module and the second communication module include first memory, second memory respectively；
The first memory, for storing the data processed needed for the first communication module；
The second memory, for storing the broadcast data for sending；
The first communication module contains real-time clock, the specific time for identifying the information that receives；
Also include the data processing module being connected with the first communication module, and the display being connected with the data processing module
Module；
The data processing module, for processing the data that the first communication module is received, underlying device is believed
Breath is cycled through to the display module；
The display module, for circulating display underlying device information；
It is characterized in that comprising the following steps：
Step A, first communication module receives the data message of upper layer device, and intercepts underlying device using first communication channel
Data message, the data message that will be received is stored in first memory；Described first is processed by the way of poll
Data in memory；
Step B, second communication module continues to send broadcast message to underlying device using the second communication channel；
Wherein first communication channel and the second communication channel are communication, and the two channel is different；
The step A is specifically included：
The first communication module processed respectively by the way of recursive call treatment the upper layer device data message that receives and
Underlying device data message, until the data message of first memory module and the second memory module is all disposed；
Meanwhile, the data message of upper layer device is intercepted using wired connection mode, and bottom is intercepted using first communication channel setting
Standby data message；
When receiving any data information, then current treatment operation is temporarily interrupted, by the data information memory in the first storage
After device, the treatment operation before return；
When the first communication module processes the data message of the upper layer device, comprise the following steps：
The first communication module reads the toggle switch of itself, and destination host is determined whether according to toggle switch value；
It is then to receive the data message, after the completion of receiving and processing, is completed to the upper layer device feedback reception；
It is no, then abandon the data message；
When the second communication module sends broadcast message to the underlying device, the second toggle switch according to itself, in hair
Region is identified in the broadcast message sent, region is recognized for the underlying device；
If the broadcast message that underlying device is controlled for the upper layer device that the first communication module is received, described first
Communication module by the first communication channel be switched to the second communication channel identical radio communication channel, to described
Two communication modules send the broadcast message, after sending successfully, the first communication channel are switched into original wireless communication immediately
Channel；
The step A also includes that the data message of the underlying device that the first communication module will be received is sent to institute
State upper layer device；
And/or the data message in the first memory is called by the data processing module, by after processing locality, passing through
Display module carries out data output.
2. communication means according to claim 1, it is characterised in that the step A also includes, the first communication module
The data message of the underlying device received according to internal real-time clock, mark, is selected according to Preset Time rule
Selecting property is received.
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| CN101146129A (en) * | 2007-10-31 | 2008-03-19 | 北京航空航天大学 | Sensor network and communication method for realizing node software based on middleware |
| CN101227367A (en) * | 2008-02-19 | 2008-07-23 | 东南大学 | Method for competing access period multilevel collocation of distributed wireless sensor network |
| CN101083586B (en) * | 2006-05-31 | 2012-05-30 | Sap股份公司 | Modular monitor service for smart item monitoring |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9420441B2 (en) * | 2010-07-07 | 2016-08-16 | Futurewei Technologies, Inc. | System and method for content and application acceleration in a wireless communications system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101083586B (en) * | 2006-05-31 | 2012-05-30 | Sap股份公司 | Modular monitor service for smart item monitoring |
| CN101146129A (en) * | 2007-10-31 | 2008-03-19 | 北京航空航天大学 | Sensor network and communication method for realizing node software based on middleware |
| CN101227367A (en) * | 2008-02-19 | 2008-07-23 | 东南大学 | Method for competing access period multilevel collocation of distributed wireless sensor network |
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