CN104063036A - Control method and system for scanning guns - Google Patents
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Abstract
The invention discloses a control method for a plurality of scanning guns managed by one host. The method comprises the steps as follows: extensible markup languages or character strings are used for generating a scanning data packet through encoding, wherein the scanning data packet comprises data scanned by any one of the plurality of scanning guns and serial numbers enabling the host to recognize the scanning guns; the scanning data packet is sent to the host managing the plurality of scanning guns through a USB (universal serial bus). According to the control method, the serial numbers of the scanning guns are obtained while the scanning data are obtained, so that one computer host can manage the plurality of scanning guns, and the usage cost of the scanning guns can be reduced. Meanwhile, the scanning guns are no longer simple keyboard-simulating input equipment, two-way communication can be performed between the scanning guns and the host, and some advanced functions or applications which cannot be realized in one-way communication in the prior art can be realized. Besides, wired scanning guns and upgraded wireless scanning guns can be networked, and the scanning guns can communicate with one another.
Description
Technical Field
The invention relates to the field of scanning guns, in particular to a data collection and communication technology of a plurality of scanning guns.
Background
The scanning gun is a third generation computer input device following a keyboard and a mouse as a high-tech product with closely combined technologies such as optics, mechanics, electronics, software application and the like. Since the birth of the 80 s, the scanning gun is developed rapidly and widely applied, and bar codes, pictures, photos and the like can be input into a computer host by the scanning gun, so that the collection, processing, management, use, storage or output of the information can be realized. The existing scanning gun can be divided into three types. The first is a wire scanning gun, which is connected with a host computer through a USB bus to transmit scanning data to the host computer. The second is an upgraded wireless scanning gun, which can transmit data to a host connected with the wireless scanning gun through wireless communication technologies such as bluetooth, infrared and 2.4G. The third is a PDA (Personal digital assistant) scanning gun, which communicates with one or more hosts through a WLAN, passing data. The third type of palm scanner gun is quite expensive, so in the field of manufacturing where multiple or large numbers of scanners are required, the first type of cheap scanner gun is used more often, and sometimes the second type is also used. However, in the conventional case, the host computer only considers the two scan guns as simple input devices, and when multiple scan guns are connected to one host computer at the same time, the host computer cannot know the data source of the scan result (i.e. the scan gun from which the scan data comes). It is now common to purchase a large number of host machines, each connected to a scan gun, to distinguish the data sources, which is costly.
From the above, there are several drawbacks to the existing techniques for applying a scanning gun. First, implementation and maintenance costs are high. In the practical application scenario of the scanning gun, the scanning gun is used as a terminal, and information obtained by scanning needs to be transmitted to a data server through a network, so that corresponding information management requirements (including functions of data collection, processing and the like) are realized. However, except that the third PDA bar code scanning gun can directly access the network containing the data server through the wireless network card, the other two types of scanning guns need to be connected to the computer host which has already accessed the network to transmit the information to the data server. In the prior art, each of the first and second scan guns needs to be connected to a computer host. On the other hand, PDA scanning guns that can be connected to a network via a WLAN are expensive. This results in a significant cost to purchase and maintain a computer mainframe when the user is using a non-PDA scan gun. Secondly, in the prior art, the scanning gun and the host computer are in one-way communication, and the feedback is simple. The host computer only can regard the first and second scanning guns as a simple input device, when the scanning gun obtains data and transmits the data to the host computer, the host computer cannot know the data source of the scanning result, and no feedback or only simple 'success/failure' feedback exists.
Disclosure of Invention
To solve the above problems, embodiments of the present invention provide a control method of a plurality of scan guns for communicating with one host, a control method of the above host, and a control apparatus of a plurality of scan guns managed by one host, which can reduce the cost of implementing the scan gun technology. In addition, the requirement of modern production and life (such as material tracking, logistics management of storage and the like) for bidirectional communication between the scanning gun and the host computer can be met.
One embodiment of the invention discloses a control method of a plurality of scanning guns managed by a host, which comprises the following steps: generating a scan packet using extensible markup language (XML) or string coding, the scan packet including data for scanning any of the plurality of scan guns and a number enabling the host to recognize the scan gun, and transmitting the scan packet to a host managing the plurality of scan guns through a Universal Serial Bus (USB).
Preferably, the method further comprises: and acquiring a hardware (MAC) address, an IP address or a device number of the scanning gun as a number for identifying the scanning gun by the host computer included in the scanning data packet.
Preferably, the method further comprises: and receiving and analyzing feedback information generated by using extensible markup language (XML) or character string coding and transmitted to the scanning gun after the scanning data packet is analyzed by the host.
Preferably, the method further comprises: generating a first communication data packet using extensible markup language (XML) or string encoding, the first communication data packet including an access request for a scanning gun to access another target scanning gun of the plurality of scanning guns and a number enabling the host to identify the target scanning gun, and transmitting the first communication data packet to the host via a Universal Serial Bus (USB).
Preferably, after the host analyzes the first communication data packet, the host uses extensible markup language (XML) or character string coding to generate a second communication data packet according to the number of the pre-accessed target scanning gun contained in the first communication data packet, analyzes the second communication data packet, and judges whether the host is the target scanning gun according to the number of the pre-accessed target scanning gun contained in the second communication data packet, if so, corresponding feedback information is displayed to the user.
Wherein the plurality of scan guns are connected to a HUB via a Universal Serial Bus (USB) interface, and the data packets are transmitted to the HUB USB HUB connected to a host via the USB interface. In the embodiment shown in fig. 1 and 2, the USB HUB is connected to the host via a universal serial bus USB 540.
Another embodiment of the present invention further discloses a control method for a host computer for managing a plurality of scanning guns, the method comprising: receiving a data packet transmitted to the host by any one of the plurality of scanning guns through a Universal Serial Bus (USB) connected with the plurality of scanning guns, wherein the data packet is generated by using extensible markup language (XML) or character string codes and comprises data scanned by any one of the plurality of scanning guns and a number enabling the host to identify the scanning gun, and the host analyzes the data packet so as to obtain the data scanned by the scanning gun and the number of the scanning gun.
Preferably, the method further comprises: and after the data packet is analyzed, feedback information is generated by using extensible markup language (XML) or character string coding, and the feedback information is sent to the scanning guns through Universal Serial Buses (USB) connected with the plurality of scanning guns.
The data packet transmitted to the host by any one of the multiple scanning guns further comprises a first communication data packet, the first communication data packet comprises an access request for accessing another target scanning gun in the multiple scanning guns, after the host receives the data packet transmitted by the scanning gun, the host judges whether the data packet is a first communication data packet containing a communication request or a scanning data packet containing scanning data, if the data packet is determined to be the first communication data packet containing the communication request, the host generates a second communication data packet according to the number of the pre-accessed target scanning gun contained in the communication data packet by using extensible markup language (XML) or character string coding, and transmits the second communication data packet to the scanning gun through the Universal Serial Bus (USB).
Another embodiment of the present invention further discloses a control device for a plurality of scanning guns managed by a host, the device comprising: a data packet generating module for generating a scan data packet using extensible markup language (XML) or character string encoding, the scan data packet including data scanned by any one of the plurality of scan guns and a number enabling the host to recognize the scan gun, and a transmitting module for transmitting the scan data packet to a host managing the plurality of scan guns through a universal serial bus USB.
Preferably, the apparatus further includes a scan gun number obtaining module, which obtains a MAC address, an IP address, or a device number of a scan gun as a number for the host to identify the scan gun included in the data packet.
Preferably, the apparatus further comprises a feedback module configured to: and receiving and analyzing feedback information which is generated by using extensible markup language (XML) or character string coding and is sent to the scanning gun after the host analyzes the received data packet, and displaying the corresponding feedback information to a user.
Preferably, the data packet generating module is further configured to generate a first communication data packet using extensible markup language (XML) or character string encoding, the first communication data packet including an access request for accessing another target scanning gun of the plurality of scanning guns by one of the scanning guns and a number enabling the host to identify the target scanning gun, and the sending module is further configured to transmit the first communication data packet to the host through a universal serial bus USB.
Compared with the prior art, the embodiment of the invention obtains the equipment number of the scanning gun while obtaining the scanning data or the access request data, so that one computer host can be connected with a plurality of scanning guns. Thereby reducing the cost of applying the scanning gun. And, can carry out two-way communication between scanning rifle and host computer, and then can realize some advanced functions or application that can not realize among the prior art one-way communication. In addition, embodiments of the present invention also enable networking of wired and upgraded wireless scanning guns, with communication between the guns.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein,
FIG. 1 is a schematic diagram of a system including a plurality of scan guns and a host computer for managing the scan guns;
FIG. 2 is a schematic diagram of an alternative system including a plurality of scan guns and a host computer for managing the scan guns;
FIG. 3 is a flow chart of a control method for the above-described system according to one embodiment of the present invention;
fig. 4 shows a control device for the system described above.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, specific embodiments of the present invention will now be described with reference to the accompanying drawings.
To facilitate understanding of the control method in the embodiment of the present invention, fig. 1 and 2 show schematic diagrams of systems suitable for the control method disclosed in the embodiment of the present invention. Embodiments of the present invention are applicable to the first wired scanning gun and the second upgraded wireless scanning gun described above. The system of fig. 1 generally includes two wire scan guns 100 and a host computer 1000 connected to the guns via USB ports. The two wire scan guns 1000 are merely illustrative and one host 1000 may manage multiple wire scan guns 100 or multiple upgraded wireless scan guns 200. Data can be transmitted between each scan gun and the host through a USB line, for example, as shown in FIGS. 1 and 2, the host 1000 can receive data from the scan gun through one USB line 510A, and can transmit data (including management instructions of the scan gun by the host, data processed by the host, and the like) transmitted to the scan gun by the host 1000 through the other USB line 510B. The USB cable may transmit packets between a HUB (HUB) 500 and the host 1000 by connecting them. Also, a host 1000 may manage both the wired scan gun 100 and the upgraded wireless scan gun 200 as shown in fig. 2. The host 1000 communicates data packets with the wireless scanning gun 200 via wireless communication modules, such as bluetooth, infrared, and 2.4G wireless communication technologies. The wireless scanning gun 200 shown in fig. 1 is in bluetooth mode communication with a host computer, which may include a base 250 for the wireless scanning gun 200 providing bluetooth connectivity and power functions.
The scan gun 100, 200 includes a data transmission/reception module 120, 220 (so-called data processing module) including a data encapsulation unit 121, 221 and a data parsing unit 122, 222. The data encapsulation unit 121, 221 encapsulates the data packet according to an encapsulation protocol (i.e., XML or string encoding) of the data packet. After the data is encapsulated, the data packet is transmitted to the host 1000 through a universal serial bus USB connected to the host 1000. Thus, one host 1000 can receive and manage (including identifying, collecting, and processing) data from multiple scan guns.
The control method of the present invention will be described with reference to fig. 3. At start up, the scanning gun 100, 200 scans information (e.g., barcodes, two-dimensional codes, FRID chips, etc.) on the target 10 through its scan engine 140, 240. The information may be data scanned by the scanning gun, such as product information attached to goods or order information in a factory, etc. Meanwhile, the information may be an access request for accessing one scan gun (i.e., the source scan gun) to another scan gun (i.e., the target scan gun). For example, in some cases one scan gun needs to be notified of another scan gun job task, or one scan gun needs to provide job support for another scan gun. In these cases one scan gun (i.e., the source scan gun) needs to visit another scan gun (i.e., the target scan gun).
Then, the scan engines 140 and 240 analyze the acquired scan data, and if the scan engines cannot analyze the scan data, the host 1000 directly generates a feedback message and sends the feedback message to the scan gun. Here, the host 1000 may directly send a feedback message to the scan gun according to the ID of the source scan gun acquiring the scan data, but preferably, the host 1000 sends the feedback message to all the scan guns managed by the host, and after receiving the feedback message by the data parsing units 122, 222 of each scan gun, parses the feedback message and determines whether the host is a scan gun that should accept the feedback message, and if so, sends feedback to the user of the scan gun by activating the LED lamp or buzzer 101, 201 of the scan gun. If the local machine is judged not to be the scanning gun which should accept the feedback message, the scanning gun does not act. This approach does not rely on any communication protocol and can be sent directly, as opposed to sending the feedback message directly to the source scan gun.
The control method of the present invention obtains a number enabling the host to recognize each scanning gun by using the embedded software of the scanning gun. The number (i.e., ID) of the scan gun may be, for example, the hardware MAC address, IP address, or device number of each scan gun. For example, Motorola corporation has provided a development kit (SDK) for all of its scan guns, and after employees have scanned information using both types of scan guns, the development kit SDK sends a file that is generated using extensible markup language (XML). The XML file is as follows:
the ID of the scan gun scanning the data can be easily obtained from the XML file using embedded software. When there is no similar development kit in the scanning gun, the ID of each scanning gun can be obtained by generating or storing the MAC address, IP address device number or other number uniquely identifying the device in each scanning gun in advance and enabling the embedded software to read the numbers. The embedded software may be embedded in the data receiving unit 121, 221. Of course, the embedded software may be enabled to determine whether the ID of the scanning gun was successfully obtained, and if not, a similar feedback message as above may be sent to the user of the scanning gun.
Fig. 3 shows the flow of two modes of operation of the scanning gun. The embedded software may be made to encapsulate scan data of a scanning gun and ID of the scanning gun into a scan data packet in the form of extensible markup language (XML) or character string code, or encapsulate access request data (actually, the access request data is also scan data obtained by scanning a graphic code by the scanning gun) for accessing another scanning gun (target scanning gun) and ID of the target scanning gun into a first communication data packet because the scan data including the access request is processed differently from the collected scan data. The above-described encapsulation and parsing functions of data may be implemented by programming a data processing module (equivalent to the data transmission/reception module 120 shown in fig. 1 and 2) in the existing scan gun.
After the host computer 1000 receives the data packets sent by the scan guns 100, 200, the data packets are analyzed. If the parsing is successful, the host 1000 first determines whether the data packet is the first communication data packet containing the communication request or the scan data packet containing the scan data according to the data format of the xml or the string code. If it is determined to scan the data packet, the host 1000 processes or uploads the data in the data packet to the server 2000, and the data is stored or processed by the server 2000. Host 1000 may then generate a feedback message using extensible markup language or string-coded forms. The host 1000 then sends a feedback message to the data parser units 122, 222 of the scan gun via the USB interface. Here, the host 1000 may directly send a feedback message to the source scan gun acquiring the scan data according to the ID of the source scan gun included in the scan data packet. After the data parsing unit 122, 222 of the source scanning gun parses the feedback message, it sends the feedback message to the user by activating the LED lamp or buzzer 101 thereon. The host 1000 may also send a feedback message including the ID of the source scan gun that obtains the scan data to all the scan guns managed by the host 1000, and after each scan gun data analysis unit 122, 222 analyzes the feedback message, it first determines whether the own machine is a scan gun that should receive the feedback message according to the scan gun ID in the feedback message, and if so, activates the LED lamp or buzzer 101, 201 on the scan gun to send feedback to the user.
If the host determines that the data packet is a first communication data packet containing a communication request, the host generates a second communication data packet by using extensible markup language (XML) or character string coding according to the ID of the target scanning gun obtained by analyzing the first communication data packet. The second communication data packet and the first communication data packet may contain the same communication message. In practice, it is often necessary for the host computer 1000 to add some information (such as management, control information, etc. for the target scan gun) on the basis of the data packet sent by the source scan gun, so it is preferable that the host computer 1000 regenerates a new second communication data packet on the basis of the first communication data packet sent by the source scan gun, and then the host computer 1000 sends the second communication data packet to the scan gun through the USB. The host 1000 may directly send the second communication packet to the target scan gun according to the ID of the target scan gun, but preferably, the host 1000 sends the second communication packet to all the scan guns managed by the host through the universal serial bus USB, and each of the data analyzing units 122 and 222 of the scan gun receives and analyzes the second communication packet and then determines whether the packet is sent to the host, and if so, the LED lamp or buzzer 101 and 201 of the target scan gun is operated to send a prompt or feedback to the user. Meanwhile, the host generates feedback information to the source scan gun using extensible markup language (XML) or string encoding. In a similar manner as above, the host 1000 may directly send the feedback message to the target scan gun according to the ID of the source scan gun, but preferably, the host 1000 sends the feedback message to all the scan guns managed by the host, each receives and parses the feedback message by the data parsing unit 122, 222 of the scan gun, and then determines whether the host is the source scan gun that should receive the feedback message, and if so, activates the LED lamp or buzzer 101, 201 of the source scan gun to send feedback to the user. If the local machine is judged not to be the scanning gun which should accept the feedback message, the scanning gun does not act.
The ID of the scan gun that can be recognized by the host 1000 used herein is an arbitrary number that one host 1000 can recognize any one of the scan guns 100 managed by the host, and is not limited to the MAC address and IP address of the scan gun or the device number of the scan gun manufacturer. In addition, although the present invention is applicable to the first wired scanning gun and the second upgraded wireless scanning gun, if it is actually necessary to use the first wired scanning gun and the third handheld scanning gun at the same time, or the second upgraded wireless scanning gun and the third handheld scanning gun, or three of them. The palm scanning gun can directly communicate with the host computer and transmit data through the WLAN.
Fig. 4 shows a control apparatus using the above control method, the apparatus including: the device comprises a data packet generating module and a sending module, wherein the data packet generating module is used for generating a scanning data packet by using extensible markup language or character string coding, the scanning data packet comprises data scanned by any one of the plurality of scanning guns and a number enabling the host to identify the scanning gun, and the sending module is used for transmitting the scanning data packet to a host managing the plurality of scanning guns through a Universal Serial Bus (USB).
Preferably, the apparatus further includes a scan gun number obtaining module, which obtains a MAC address, an IP address, or a device number of a scan gun as a number for the host to identify the scan gun included in the data packet.
Preferably, the apparatus further comprises a feedback module configured to: and receiving and analyzing feedback information generated by using extensible markup language or character string codes and sent to the scanning gun after the host analyzes the received data packet, and displaying the corresponding feedback information to a user.
Preferably, the data packet generating module is further configured to generate a first communication data packet using extensible markup language or character string coding, the first communication data packet includes an access request for accessing another target scanning gun of the plurality of scanning guns and a number enabling the host to identify the target scanning gun, and the sending module is further configured to transmit the first communication data packet to the host through a universal serial bus USB.
As can be seen from the above, the control method and system of the embodiment of the present invention obtain the serial numbers of the scanning guns while obtaining the scanning data or the access request data, so that one computer host can be connected to a plurality of scanning guns. The cost of applying the scanning gun can be reduced. Meanwhile, the scanning gun is no longer a simple analog keyboard input device, two-way communication can be carried out between the scanning gun and the host, and some advanced functions or applications which cannot be realized in one-way communication in the prior art can be realized. In addition, the wired scanning gun and the upgraded wireless scanning gun can be networked, and the scanning guns can communicate with each other.
It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.
Claims (13)
1. A method of controlling a plurality of scan guns managed by a host, the method comprising:
generating a scan data packet using extensible markup language XML or string encoding, the scan data packet including data for scanning any of the plurality of scan guns and a number enabling the host to identify the scan gun, and
and transmitting the scanning data packet to a host computer for managing the plurality of scanning guns through a Universal Serial Bus (USB).
2. The method of claim 1, wherein the method further comprises: and acquiring a hardware MAC address, an IP address or an equipment number of a scanning gun, wherein the hardware MAC address, the IP address or the equipment number is used as the number of the scanning gun identified by the host machine included in the scanning data packet.
3. The method of claim 3, wherein the method further comprises:
and receiving and analyzing feedback information generated by using extensible markup language (XML) or character string coding and transmitted to the scanning gun after the scanning data packet is analyzed by the host.
4. The method of claim 1, wherein the method further comprises: generating a first communication data packet using extensible markup language (XML) or string encoding, the first communication data packet including an access request for a scanning gun to access another target scanning gun of the plurality of scanning guns and a number enabling the host to identify the target scanning gun,
and transmitting the first communication data packet to the host through a Universal Serial Bus (USB).
5. The method of claim 4, receiving a second communication packet generated from a number of a pre-visited target scan gun contained in the first communication packet encoded using extensible markup language (XML) or a string after the host parses the first communication packet, and
and analyzing the second communication data packet, judging whether the machine is the target scanning gun according to the number of the target scanning gun pre-accessed in the second communication data packet, and if so, displaying corresponding feedback information to a user.
6. The method of claim 1, wherein said plurality of scan guns are connected to a HUB via a Universal Serial Bus (USB) interface, said data packets being communicated to said HUB USB HUB connected to a host computer via said Universal Serial Bus (USB).
7. A control method for a host computer for managing a plurality of scan guns, the method comprising:
receiving a data packet transmitted to the host by any one of the plurality of scan guns through a Universal Serial Bus (USB) connected to the plurality of scan guns, the data packet being generated using extensible markup language (XML) or character string encoding, including data scanned by any one of the plurality of scan guns and a number enabling the host to recognize the scan gun, and
and the host analyzes the data packet so as to acquire the data scanned by the scanning gun and the serial number of the scanning gun.
8. The method of claim 7, wherein the method further comprises: and after analyzing the data packet, generating feedback information by using extensible markup language XML or character string coding, and sending the feedback information to the scanning guns through a Universal Serial Bus (USB) connected with the plurality of scanning guns.
9. The method of claim 7, wherein the data packet transmitted to the host by any one of the plurality of scan guns further comprises a first communication data packet comprising an access request for the any one of the plurality of scan guns to access another target scan gun of the plurality of scan guns, and the host determines whether the data packet comprises the first communication data packet of the communication request or the scan data packet of the scan data after receiving the data packet transmitted by the scan gun,
if the communication request is determined to be contained in the first communication data packet, the host generates a second communication data packet according to the number of the pre-accessed target scanning gun contained in the communication data packet by using extensible markup language (XML) or character string coding, and sends the second communication data packet to the scanning gun through the Universal Serial Bus (USB).
10. A control apparatus for a plurality of scan guns managed by a host, the apparatus comprising:
a data packet generation module for generating a scan data packet using extensible markup language XML or character string encoding, the scan data packet including data for scanning any of the plurality of scan guns and a number enabling the host to identify the scan gun,
and the sending module transmits the scanning data packet to a host computer for managing the plurality of scanning guns through a Universal Serial Bus (USB).
11. The apparatus of claim 10, wherein the apparatus further comprises a scan gun number obtaining module that obtains a MAC address, an IP address, or a device number of a scan gun as a number that the host included in the data packet identifies the scan gun.
12. The apparatus of claim 10, wherein the apparatus further comprises a feedback module to: and receiving and analyzing feedback information which is generated by using extensible markup language XML or character string coding and is sent to the scanning gun after the host analyzes the received data packet, and displaying the corresponding feedback information to a user.
13. The apparatus of claim 10, wherein the packet generation module is further configured to generate a first communication packet using extensible markup language (XML) or string coding, the first communication packet including an access request for a scan gun to access another target scan gun of the plurality of scan guns and a number that enables the host to identify the target scan gun, and
the sending module is further configured to transmit the first communication packet to the host via a Universal Serial Bus (USB).
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| CN107563235A (en) * | 2017-08-21 | 2018-01-09 | 深圳市兆驰数码科技股份有限公司 | A kind of scanner identification scanning method |
| CN112003962A (en) * | 2020-08-14 | 2020-11-27 | 迅镭智能（广州）科技有限公司 | Scanning gun base and processing method, device and medium thereof |
| CN112423282A (en) * | 2020-11-11 | 2021-02-26 | 迅镭智能（广州）科技有限公司 | Scanning gun data processing method and related equipment |
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