CN219778215U - Serial interface multiplexing device and serial interface multiplexing upper computer system - Google Patents

Abstract

The utility model provides a serial interface multiplexing device and a serial interface multiplexing upper computer system, wherein the serial interface multiplexing device connects one side of N switch units in parallel to a summarizing interface of the serial interface multiplexing device so as to be connected with a communication interface of an upper computer; the other side of each switch unit is respectively connected with a corresponding tapping interface in the serial interface multiplexing device so as to be connected with a communication interface of each peripheral device; and the upper computer can communicate with different peripheral equipment through different switch units in the serial interface multiplexing device, and a plurality of RS232 serial ports are not required to be installed for the upper computer, so that the increase of communication cost is avoided.

Description

Serial interface multiplexing device and serial interface multiplexing upper computer system

Technical Field

The present utility model relates to the field of interface multiplexing technologies, and in particular, to a serial interface multiplexing device and a serial interface multiplexing host computer system.

Background

In the prior art, the upper computer needs to control peripheral equipment to work through an RS232 serial port, and usually one peripheral equipment corresponds to one RS232 serial port in the upper computer. When the upper computer needs to control a plurality of peripheral devices, the communication function between the upper computer and each peripheral device can be realized by installing a plurality of RS232 serial ports, but the scheme has higher cost.

Therefore, how to realize communication between the upper computer and the plurality of peripheral devices, and at the same time, reduce the communication cost is a problem to be solved in the art.

Disclosure of Invention

In view of this, the present utility model provides a serial interface multiplexing device and a serial interface multiplexing host computer system, so that the host computer can communicate with a plurality of peripheral devices, and meanwhile, the communication cost is reduced.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the first aspect of the present utility model provides a serial interface multiplexing device, comprising: n switch units; wherein N is a positive integer greater than 1;

one side of each switch unit is connected in parallel to the inner side of a summarizing interface of the serial interface multiplexing device;

the outer side of the summarizing interface is connected with a communication interface of the upper computer;

the other side of each switch unit is respectively connected with the inner side of a corresponding tapping interface in the serial interface multiplexing device;

the outside of the tapping interface is connected with a communication interface of the corresponding peripheral equipment.

Optionally, each of the switch units is not turned on at the same time.

Optionally, each of the switch units includes: a first switch and a second switch;

one end of each first switch is connected with a receiving end in the summarizing interface;

the other end of each first switch is connected with the corresponding transmitting end in the tapping interface;

one end of each second switch is connected with the transmitting end in the summarizing interface;

the other end of each second switch is connected with the corresponding receiving end in the tapping interface.

Optionally, the first switch and the second switch are independent relays.

Optionally, the first switch and the second switch are both semiconductor switches.

Optionally, the first switch and the second switch are different contacts in the same relay.

Optionally, the first switch and the second switch are controlled by the upper computer.

Optionally, the first switch and the second switch in each switch unit are linked.

Optionally, the communication interface of the upper computer and the communication interface of each peripheral device are both RS232 interfaces.

The second aspect of the present utility model also provides a serial interface multiplexing upper computer system, comprising: a host computer and a serial interface multiplexing device as described in any one of the first aspects above; wherein, the liquid crystal display device comprises a liquid crystal display device,

the communication interface of the upper computer is connected with the summarizing interface of the serial interface multiplexing device;

each tapping interface in the serial interface multiplexing device is connected with a communication interface of the corresponding peripheral equipment.

The serial interface multiplexing device provided by the utility model connects one sides of N switch units in parallel to the summarizing interface of the serial interface multiplexing device so as to be connected with the communication interface of an upper computer; the other side of each switch unit is respectively connected with a corresponding tapping interface in the serial interface multiplexing device so as to be connected with a communication interface of each peripheral device; and the upper computer can communicate with different peripheral equipment through different switch units in the serial interface multiplexing device, and a plurality of RS232 serial ports are not required to be installed for the upper computer, so that the increase of communication cost is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will briefly explain the embodiments or the drawings to be used in the description of the prior art, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a serial interface multiplexing upper computer system according to an embodiment of the present utility model;

fig. 2 is a schematic diagram of a specific structure of a serial interface multiplexing host system according to an embodiment of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the present disclosure, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The utility model provides a serial interface multiplexing device, which enables an upper computer to communicate with a plurality of peripheral devices, and reduces communication cost.

The serial interface multiplexing device provided in this embodiment includes: n switch units; wherein N is a positive integer greater than 1; referring to fig. 1, taking 5 switch units as an example for illustration, one side of each switch unit is connected in parallel to the inner side of a summary interface of the serial interface multiplexing device 10, and the outer side of the summary interface is connected with a communication interface of the upper computer 20; meanwhile, the other side of each switch unit is respectively connected with the inner side of a corresponding tapping interface in the serial interface multiplexing device 10, and the outer side of each tapping interface is connected with a communication interface of a corresponding peripheral device.

In practical application, the communication interface of the upper computer 20 and the communication interfaces of the peripheral devices may be RS232 interfaces, so that the upper computer 20 and the peripheral devices can realize corresponding communication functions through the RS232 interfaces, and in practical application, other types of interfaces may be adopted, so long as the corresponding communication functions can be realized, the present utility model is not limited specifically, and the present utility model is within the scope of protection of the present utility model depending on the practical application environment.

It should be noted that, when any switch unit is turned on, the peripheral device connected to the switch unit can communicate with the host computer 20. For example: when the first switch unit 01 is turned on, the first peripheral device can communicate with the upper computer 20; when the second switch unit 02 is turned on, the second peripheral device can communicate with the upper computer 20; when the third switch unit 03 is turned on, the third peripheral device can communicate with the upper computer 20; when the fourth switch unit 04 is turned on, the fourth peripheral device can communicate with the upper computer 20; when the fifth switch unit 05 is turned on, the fifth peripheral device can communicate with the host computer 20.

In practical applications, each switch unit may be turned on at different times, so that the host computer 20 may communicate with the corresponding peripheral devices at different times. For example, each switch unit may be turned on sequentially, so that the host computer may communicate with the corresponding peripheral device sequentially, which is not limited in practical application, and may be within the scope of the present utility model depending on the specific application environment.

The serial interface multiplexing device 10 provided in this embodiment connects one sides of N switch units in parallel to the summary interface of the serial interface multiplexing device 10 to connect to the communication interface of the host computer 20; the other side of each switch unit is respectively connected with a corresponding tapping interface in the serial interface multiplexing device 10 so as to be connected with a communication interface of each peripheral device; and then the upper computer 20 can communicate with different peripheral devices through different switch units in the serial interface multiplexing device 10, and a plurality of RS232 serial ports are not required to be installed for the upper computer 20, so that the increase of communication cost is avoided, and the whole upper computer 20 is more attractive.

Based on the above embodiment, the serial interface multiplexing device 10 may specifically be as shown in fig. 2, where each of the switch units includes: a first switch S1 and a second switch S2; one end of each first switch S1 in each switch unit is connected with a receiving end RX in the summarizing interface, and the other end of each first switch S1 is connected with a transmitting end TX in the corresponding tapping interface; meanwhile, one end of each second switch S2 in each switch unit is connected with the transmitting end TX in the summarizing interface, and the other end of each second switch S2 is connected with the receiving end RX in the corresponding tapping interface.

It should be noted that, the first switch S1 and the second switch S2 may be controlled by the host computer 20, so that the host computer 20 can control the corresponding peripheral devices to operate by controlling the first switch S1 and the second switch S2 to be turned off in each switch unit, and receive the feedback signals output by the corresponding peripheral devices. In practical applications, the states of the first switch S1 and the second switch S2 may be changed by manual control. The practical application is not limited to this, and can be determined according to the specific application environment, and the practical application is within the protection scope of the utility model.

In practical application, an independent relay or a semiconductor switch can be adopted as each switch to realize corresponding communication function; different contacts in the same relay can also be adopted to serve as a first switch S1 and a second switch S2 in the corresponding switch units respectively, so that corresponding communication functions are realized. The practical application is not limited to this, and the utility model is within the protection scope as long as the corresponding communication function can be realized.

When the serial interface multiplexing device 10 is remotely controlled by an upper computer, the first switch S1 and the second switch S2 in each switch unit can be controlled respectively, preferably, the first switch S1 and the second switch S2 in each switch unit can be controlled in a linkage manner, for example, the same control signal can be received at the same time, so as to realize the same on-off. The practical application is not limited to this, and can be determined according to the specific application environment, and the practical application is within the protection scope of the utility model.

Specifically, taking the first switch unit 01 as an example, the first switch S1 and the second switch S2 in the first switch unit 01 receive the closing signal sent by the upper computer 20 at the same time, and respond to the closing signal to close, at this time, the upper computer 20 may send a corresponding control signal to the first peripheral device through the first switch S1, or may receive a feedback signal output by the first peripheral device through the second switch S2.

According to the serial interface multiplexing device 10 provided by the embodiment, the upper computer 20 can communicate with different peripheral devices through the first switch S1 and the second switch S2 in different switch units by adopting the first switch S1 and the second switch S2, and a plurality of RS232 serial ports are not required to be installed for the upper computer 20, so that the increase of communication cost is avoided.

Another embodiment of the present utility model further provides a serial interface multiplexing host computer system, as shown in fig. 1, including: a host computer 20 and the serial interface multiplexing device 10 according to any of the above embodiments; the communication interface of the upper computer 20 is connected with the summarizing interface of the serial interface multiplexing device 10, and each tapping interface in the serial interface multiplexing device 10 is connected with the communication interface of the corresponding peripheral device.

The serial interface multiplexing upper computer system provided in this embodiment, by adopting the serial interface multiplexing device 10 according to any one of the embodiments, enables the upper computer 20 to communicate with different peripheral devices through the serial interface multiplexing device 10, and avoids installing multiple RS232 serial ports for the upper computer 20, thereby avoiding the increase of communication cost, and enabling the control of multiple peripheral devices through the serial interface multiplexing device 10 flexibly when only one serial port exists in the upper computer 20.

The same and similar parts of the embodiments in this specification are all mutually referred to, and each embodiment focuses on the differences from the other embodiments. In particular, for a system or system embodiment, since it is substantially similar to a method embodiment, the description is relatively simple, with reference to the description of the method embodiment being made in part. The systems and system embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present utility model without undue burden.

Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative elements and steps are described above generally in terms of functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present utility model.

The features described in the various embodiments of the present disclosure may be interchanged or combined with one another in the description of the disclosed embodiments to enable those skilled in the art to make or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A serial interface multiplexing device, comprising: n switch units; wherein N is a positive integer greater than 1;

one side of each switch unit is connected in parallel to the inner side of a summarizing interface of the serial interface multiplexing device;

the outer side of the summarizing interface is connected with a communication interface of the upper computer;

the other side of each switch unit is respectively connected with the inner side of a corresponding tapping interface in the serial interface multiplexing device;

the outside of the tapping interface is connected with a communication interface of the corresponding peripheral equipment.

2. The serial interface multiplexing device of claim 1, wherein each of the switching units is not turned on at the same time.

3. The serial interface multiplexing device according to claim 1, wherein each of the switch units includes: a first switch and a second switch;

one end of each first switch is connected with a receiving end in the summarizing interface;

the other end of each first switch is connected with the corresponding transmitting end in the tapping interface;

one end of each second switch is connected with the transmitting end in the summarizing interface;

the other end of each second switch is connected with the corresponding receiving end in the tapping interface.

4. A serial interface multiplexing device according to claim 3 wherein the first switch and the second switch are each independent relays.

5. A serial interface multiplexing device according to claim 3 wherein the first switch and the second switch are both semiconductor switches.

6. A serial interface multiplexing device according to claim 3 wherein the first switch and the second switch are different contacts in the same relay.

7. The serial interface multiplexing device according to any one of claims 3 to 6, wherein the first switch and the second switch are controlled by the host computer.

8. The serial interface multiplexing apparatus according to any one of claims 3 to 6, wherein the first switch and the second switch in each of the switch units are interlocked.

9. The serial interface multiplexing apparatus according to any one of claims 1 to 6, wherein the communication interface of the host computer and the communication interface of each of the peripheral devices are both RS232 interfaces.

10. A serial interface multiplexing host computer system, comprising: a host computer and the serial interface multiplexing device according to any one of claims 1 to 9; wherein, the liquid crystal display device comprises a liquid crystal display device,

the communication interface of the upper computer is connected with the summarizing interface of the serial interface multiplexing device;

each tapping interface in the serial interface multiplexing device is connected with a communication interface of the corresponding peripheral equipment.