Remote-controlled stacker control and detection identification system and working method thereof

Abstract

The application belongs to the technical field of digital information transmission, and particularly relates to a remote control stacker control and detection identification system and a working method thereof. The remote control stacker control and detection identification system comprises: receiving devices and a plurality of stackers. Each receiving device is arranged in a site, the communication range of the receiving device covers the site, and each stacker is arranged in the site. When any receiving device is enabled, the receiving device acquires the communication strength between each stacker and the receiving device, so as to distribute each stacker to communicate with the receiving device on a 160MHz channel in a direct connection mode or a relay mode. When any receiving device is enabled, the receiving device acquires the total number of stackers, so as to enable the remaining receiving devices when the number exceeds a limit. The application can orderly distribute each 160MHz channel, ensure that the communication strength between the stackers or between the stackers and the receiving device is high during data transmission, avoid excessive occupation of wireless channel resources, and overcome the problem of channel interference.

Description

Technical Field

[0001] This invention belongs to the field of digital information transmission technology, specifically relating to packet switching systems, and more particularly to a remote control forklift control and detection identification system and its working method. Background Technology

[0002] Forklifts need to operate within the site, and they communicate wirelessly with the control console. During this wireless communication, due to limited wireless channel resources and the random variation in the number of forklifts in the site, when the number of forklifts exceeds the available wireless channel resources, the resources are exhausted. If the channel resources are not properly allocated, interference between the wireless channels can occur, with signals from adjacent wireless channels intruding into the target channel. This can cause the control console to make incorrect decisions about digital signals "0" and "1", resulting in a significant increase in the bit error rate (BER).

[0003] Therefore, there is an urgent need to develop a new remote control stacker control and detection identification system and its working method to solve the technical problem of mutual interference of wireless channels during wireless communication between the stacker and the control console.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore, the above description is not considered to constitute prior art information. Summary of the Invention

[0005] This disclosure provides at least one remote control stacker control and detection identification system and its working method.

[0006] In a first aspect, embodiments of this disclosure provide a remote control forklift control and detection identification system, comprising: at least one receiving device and a plurality of forklifts; wherein each receiving device is respectively deployed in a site to cover the site with its communication range, and each forklift is deployed within the site; when any receiving device is activated, the receiving device is configured to acquire the communication strength between each forklift and the receiving device, so as to allocate each forklift to communicate with the receiving device on a 160MHz channel in either direct connection mode or relay mode; and when any receiving device is activated, the receiving device is further configured to acquire the total number of forklifts, so as to activate the remaining receiving devices after the limit number is exceeded.

[0007] In one optional implementation, when any receiving device is enabled, the receiving device is configured to acquire the communication strength between each forklift and the receiving device; when the communication strength between any forklift and the receiving device exceeds a first preset communication strength, the receiving device is configured to set the forklift to perform direct connection mode to communicate with the receiving device, or when the communication strength between any forklift and the receiving device does not exceed the first preset communication strength, the receiving device is configured to set the forklift to perform relay mode to communicate with the receiving device.

[0008] In one optional implementation, the receiving device is configured to acquire the total number of forklifts executing the direct-connect mode; when the total number of forklifts executing the direct-connect mode is less than a first preset number, the receiving device is further configured to allocate a corresponding channel to communicate with each forklift; when the total number of forklifts executing the direct-connect mode is greater than the first preset number but less than the limit number, the receiving device is further configured to divide each forklift into several groups and allocate a corresponding channel to communicate with each forklift group.

[0009] In one optional implementation, when the total number of forklifts executing direct connection mode is greater than a first preset number but less than a limit number, the receiving device is configured to divide each forklift into several groups according to different communication strength ranges between the forklift and the receiving device; when the number of forklift groups is within a second preset threshold, the receiving device is further configured to alternately allocate to each forklift group according to the first channel, third channel, fifth channel, seventh channel, second channel, fourth channel, sixth channel, and eighth channel; when the number of forklift groups exceeds the second preset threshold, the receiving device is further configured to alternately allocate to each forklift group according to the first channel, fifth channel, second channel, sixth channel, third channel, seventh channel, fourth channel, and eighth channel.

[0010] In one optional implementation, each forklift operator in direct connection mode scans surrounding forklift operators in relay mode to obtain the communication strength between the forklift operator in direct connection mode and the surrounding forklift operators in relay mode, so that each forklift operator in relay mode is bound to the corresponding forklift operator in direct connection mode, that is, each forklift operator in relay mode communicates with the receiving device through the corresponding forklift operator in direct connection mode.

[0011] In one alternative implementation, any forklift operating in direct-connect mode is configured to group the surrounding forklifts operating in relay mode into several groups according to the different communication strength ranges between the forklift and the surrounding forklifts operating in relay mode, and the forklift operating in direct-connect mode is bound to the forklift group with the strongest communication strength range.

[0012] In one alternative implementation, when any stacker in relay mode is within the strongest communication strength range of at least two stackers in direct-connect mode, the stacker in relay mode selects one of the stackers in direct-connect mode for binding.

[0013] In one optional implementation, when the number of stackers in relay mode bound to any stacker in direct connection mode exceeds the upper limit, each stacker in relay mode that exceeds the upper limit switches to the stacker in direct connection mode with which it has the strongest communication strength.

[0014] In one alternative implementation, when any forklift in relay mode is not within the strongest communication strength range of a forklift in direct-connect mode, the forklift switches to bind with the forklift in direct-connect mode with the strongest communication strength.

[0015] Secondly, this disclosure also provides a working method for the remote control stacker control and detection identification system as described above, which includes: when any receiving device is activated, the receiving device obtains the communication strength between each stacker and the receiving device, so as to allocate each stacker to communicate with the receiving device in direct connection mode or relay mode respectively; when any receiving device is activated, the receiving device obtains the total number of stackers, so as to activate the remaining receiving devices after the limit number is exceeded.

[0016] The beneficial effects of this invention are that by acquiring the communication strength between each forklift and the receiving device, and setting each forklift to either direct connection mode or relay mode based on the communication strength, the forklift can allocate channels in an orderly manner when it is in direct connection mode. At the same time, when the forklift is in relay mode, data is transmitted between forklifts, and finally the data transmission is completed by the forklift in direct connection mode and the receiving device. This ensures that the communication strength between forklifts or between forklifts and the receiving device is high during data transmission, avoids excessive occupation of wireless channel resources, and overcomes the problem of channel interference.

[0017] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0018] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a remote control stacker control and detection identification system provided in an embodiment of the present disclosure; Figure 2 A flowchart illustrating the operation of a remote forklift control and detection system provided in this embodiment of the present disclosure; Figure 3A flowchart illustrating a process for determining whether a forklift is executing direct-drive mode or relay mode, provided in an embodiment of this disclosure; Figure 4 A flowchart illustrating the direct-drive mode of a forklift as provided in this embodiment of the present disclosure; Figure 5 A flowchart illustrating a relay mode execution method for a forklift machine, as provided in this embodiment of the disclosure; Figure 6 This is a flowchart illustrating the process of binding a forklift in relay mode and a forklift in direct-connect mode, as provided in an embodiment of this disclosure.

[0021] In the picture: 1. Receiving device; 2. Forklift; 3. Site. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0024] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0025] Research has revealed that forklifts need to operate within the site, and the forklifts and control console communicate wirelessly. During this wireless communication, due to limited wireless channel resources and the random variation in the number of forklifts in the site, when the number of forklifts exceeds the available wireless channel resources, the resources become exhausted. If channel resources are not properly allocated, this can lead to mutual interference between wireless channels, with signals from adjacent wireless channels intruding into the target channel. This causes the control console to make incorrect judgments about digital signals "0" and "1", resulting in a significant increase in the bit error rate (BER).

[0026] Based on the above research, this disclosure provides a remote control stacker control and detection identification system and a stacker remote control method, which can allocate channels in an orderly manner, ensure high communication strength between stackers or between stackers and receiving devices during data transmission, avoid excessive occupation of wireless channel resources, and overcome the problem of channel interference.

[0027] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure below should be considered as the inventor's contribution to this disclosure.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0030] like Figures 1 to 6 As shown, at least one embodiment provides a remote control forklift control and detection identification system, which includes: at least one receiving device 1 and a plurality of forklifts 2; wherein each receiving device 1 is respectively deployed in a site 3 so that the communication range of the receiving device 1 covers the site 3, and each forklift 2 is deployed in the site 3; when any receiving device 1 is activated, the receiving device 1 is configured to obtain the communication strength between each forklift 2 and the receiving device 1, so as to allocate each forklift 2 to communicate with the receiving device 1 in a direct connection mode or a relay mode on a 160MHz channel; and when any receiving device 1 is activated, the receiving device 1 is also configured to obtain the total number of forklifts 2, so as to activate the remaining receiving devices 1 after the limit number is exceeded.

[0031] Specifically, the total bandwidth of the 160MHz channel can reach 1.73Gbps, enabling real-time video transmission from multiple 4K industrial cameras (a single 4K channel requires approximately 25-50Mbps, while 160MHz can support dozens of channels simultaneously). Industrial remote control (especially motion control and closed-loop regulation) is extremely sensitive to end-to-end latency (typically requiring <10ms, or even <1ms).

[0032] In at least one embodiment, by acquiring the communication strength between each forklift 2 and the receiving device 1, and setting each forklift 2 to direct connection mode or relay mode according to the communication strength, the forklift 2 can allocate channels in an orderly manner when it is in direct connection mode. At the same time, when the forklift 2 is in relay mode, data is transmitted between the forklift 2. Finally, the forklift 2 in direct connection mode and the receiving device 1 complete the data transmission. This can ensure that the communication strength between the forklift 2 or between the forklift 2 and the receiving device 1 is high during the data transmission process, avoid excessive occupation of wireless channel resources, and overcome the problem of channel interference.

[0033] In at least one embodiment, please refer to Figure 2 When any receiving device 1 is activated, the receiving device 1 is configured to obtain the communication strength between each forklift 2 and the receiving device 1; when the communication strength between any forklift 2 and the receiving device 1 exceeds the first set communication strength, the receiving device 1 is configured to set the forklift 2 to perform direct connection mode to communicate with the receiving device 1, or when the communication strength between any forklift 2 and the receiving device 1 does not exceed the first set communication strength, the receiving device 1 is configured to set the forklift 2 to perform relay mode to communicate with the receiving device 1.

[0034] Specifically, the original one-to-one receiving mode is changed to fixing the receiving device 1 at the receiving position to receive the signal. Based on the signal transmission path, it is possible to determine which forklift 2 belongs to which vehicle.

[0035] Specifically, the receiving device 1 determines whether the forklift 2 is in direct connection mode or relay mode based on the communication strength between the forklift 2 and the receiving device 1. This is equivalent to the forklift 2 using different channels in different areas, which can distinguish each forklift 2.

[0036] Specifically, the forklift 2 operates in direct connection mode, at which time the communication strength between the forklift 2 and the receiving device 1 is within a relatively good signal strength range.

[0037] Specifically, the forklift 2 operates in relay mode, which transmits data with the forklift 2 operating in direct mode, ultimately achieving data transmission with the receiving device 1.

[0038] In at least one embodiment, please refer to Figure 3The receiving device 1 is configured to acquire the total number of forklifts 2 executing the direct connection mode; when the total number of forklifts 2 executing the direct connection mode is less than a first set number, the receiving device 1 is further configured to allocate a corresponding channel to communicate with each forklift 2; when the total number of forklifts 2 executing the direct connection mode is greater than the first set number but less than the limit number, the receiving device 1 is further configured to divide each forklift 2 into several groups and allocate a corresponding channel to communicate with each group of forklifts 2.

[0039] Specifically, the receiving device 1 has a total of 8 160MHz channels, and the first set number can be set to 8.

[0040] Specifically, the total number of forklifts 2 is less than the first set number, and the receiving device 1 can configure a channel for each forklift 2 individually.

[0041] In at least one embodiment, please refer to Figure 4 When the total number of forklifts 2 executing direct connection mode is greater than a first preset number but less than a limit number, the receiving device 1 is configured to divide each forklift 2 into several groups according to the different communication strength ranges between the forklifts 2 and the receiving device 1; when the number of forklift 2 groups is within a second preset number threshold, the receiving device 1 is also configured to alternately allocate to each forklift 2 group according to the first channel, the third channel, the fifth channel, the seventh channel, the second channel, the fourth channel, the sixth channel, and the eighth channel; when the number of forklift 2 groups exceeds the second preset number threshold, the receiving device 1 is also configured to alternately allocate to each forklift 2 group according to the first channel, the fifth channel, the second channel, the sixth channel, the third channel, the seventh channel, the fourth channel, and the eighth channel.

[0042] Specifically, forklift machines 2 with the same communication strength range between the forklift machine 2 and the receiving device 1 are grouped together, that is, the communication strength of each forklift machine 2 in the group is consistent, which makes it smoother when using the same channel.

[0043] Specifically, the first, second, third, fourth, fifth, sixth, and seventh channels are 160MHz channels.

[0044] Specifically, the first channel is channel 36.

[0045] Specifically, the second channel is channel 40.

[0046] Specifically, the third channel is channel 44.

[0047] Specifically, the fourth channel is channel 48.

[0048] Specifically, the fifth channel is channel 52.

[0049] Specifically, the sixth channel is channel 56.

[0050] Specifically, the seventh channel is channel 60.

[0051] Specifically, the eighth channel is channel 64.

[0052] Specifically, the first, third, fifth, seventh, second, fourth, sixth, and eighth channels are alternately assigned to each of the two stacker groups. Since the stacker groups are assigned according to the different communication strength ranges between the stacker 2 and the receiving device 1, and since the stacker 2 corresponding to the same communication strength range is actually very close in location within the site 3, the channels are staggered and assigned to the stacker groups. At the same time, the number of stacker groups is within the second set threshold, which can avoid the problem of channel interference. In addition, the extra channels can be used for temporarily added stacker groups.

[0053] Specifically, the first, fifth, second, sixth, third, seventh, fourth, and eighth channels are alternately assigned to each of the two stacker groups. Since the stacker groups are assigned according to the different communication strength ranges between the stacker 2 and the receiving device 1, and since the stacker 2 corresponding to the same communication strength range is also very close in actual location within the site 3, the channels are assigned to the stacker groups in an alternating manner. At the same time, since the number of stacker groups exceeds the second set threshold, the problem of channel interference can be avoided. In addition, the extra channels can be used for temporarily added stacker groups.

[0054] In at least one embodiment, please refer to Figure 5 Each stacker 2 in direct connection mode scans the stacker 2 in relay mode around it to obtain the communication strength between the stacker 2 in direct connection mode and the stacker 2 in relay mode around it, so that each stacker 2 in relay mode is bound to the corresponding stacker 2 in direct connection mode, that is, each stacker 2 in relay mode communicates with the receiving device 1 through the corresponding stacker 2 in direct connection mode.

[0055] Specifically, since the communication strength between the forklift 2 and the receiving device 1 is less than the first set communication strength, in order to improve the communication quality between the forklift 2 and the receiving device 1, the forklift 2 executes a relay mode. By binding with a forklift 2 that executes a direct connection mode with a higher communication strength, high-quality communication with the receiving device 1 is finally achieved.

[0056] In at least one embodiment, please refer to Figure 6Any stacker 2 executing direct connection mode is configured to divide the surrounding stackers 2 executing relay mode into several groups according to the different communication strength ranges between the stacker 2 executing direct connection mode and the stackers 2 executing relay mode, and the stacker 2 executing direct connection mode is bound to the stacker 2 group with the strongest communication strength range.

[0057] Specifically, stacker 2 in direct connection mode and stacker 2 in relay mode are grouped together with each other in the same communication strength range. This means that the communication strength of each stacker 2 in the relay mode group is consistent, which makes it smoother when using the same channel.

[0058] In at least one embodiment, please refer to Figure 6 When any stacker 2 in relay mode is within the strongest communication strength range of at least two stackers 2 in direct connection mode, the stacker 2 in relay mode selects one of the stackers 2 in direct connection mode for binding.

[0059] Specifically, avoiding binding the relay mode stacker 2 with multiple stackers 2 in direct connection mode can reduce the total amount of data transmitted by the receiving device 1 and also reduce communication interference.

[0060] In at least one embodiment, please refer to Figure 6 When the number of stackers 2 in relay mode bound to any stacker 2 in direct connection mode exceeds the upper limit, each stacker 2 in relay mode that exceeds the upper limit shall switch to the stacker 2 in direct connection mode with which it has the strongest communication strength.

[0061] Specifically, there is an upper limit to the number of stackers 2 in the relay mode bound to the stacker 2 in the direct connection mode, which can ensure the stable operation of the stacker 2 in the direct connection mode, and at the same time ensure that the stacker 2 in the relay mode and the stacker 2 in the direct connection mode are always connected with a high communication strength.

[0062] In at least one embodiment, please refer to Figure 6 When any stacker 2 in relay mode is not within the strongest communication strength range of stacker 2 in direct connection mode, the stacker 2 switches to bind with the stacker 2 in direct connection mode with the strongest communication strength.

[0063] Specifically, even if the forklift 2 in relay mode is not within the strongest communication strength range of the forklift 2 in direct connection mode, the forklift 2 can still switch to bind with the forklift 2 in direct connection mode with the strongest communication strength, which can ensure that each forklift 2 can communicate with other forklift 2 or receiving device 1.

[0064] Specifically, when a forklift machine 2 is added to site 3, or when the communication strength of the forklift machine 2 in site 3 changes, the forklift machine 2 can be changed to a direct connection mode, a relay mode, or a new receiving device 1 can be started to ensure smooth communication between forklift machines 2 and between forklift machine 2 and receiving device 1.

[0065] Based on the same technical concept, at least one embodiment also provides a working method for the remote control stacker control and detection identification system as described above, which includes: when any receiving device 1 is activated, the receiving device 1 obtains the communication strength between each stacker 2 and the receiving device 1, so as to allocate each stacker 2 to communicate with the receiving device 1 in direct connection mode or relay mode respectively; when any receiving device 1 is activated, the receiving device 1 obtains the total number of stackers 2, so as to activate the remaining receiving devices 1 after the limit number is exceeded.

[0066] In summary, this invention obtains the communication strength between each forklift and the receiving device, and sets each forklift to either direct connection mode or relay mode based on the communication strength. When the forklift is in direct connection mode, it can allocate channels in an orderly manner. Meanwhile, when the forklift is in relay mode, data is transmitted between forklifts. Finally, the forklift in direct connection mode and the receiving device complete the data transmission. This ensures high communication strength between forklifts or between forklifts and the receiving device during data transmission, avoids excessive occupation of wireless channel resources, and overcomes the problem of channel interference.

[0067] The disclosures and other solutions, examples, embodiments, modules, and functional operations described in this document can be implemented in digital electronic circuits, or computer software, firmware, or hardware, including the structures disclosed in this document and their structural equivalents, or combinations thereof. The disclosures and other embodiments can be implemented as one or more computer program products, i.e., one or more modules of computer program instructions encoded on a tangible and non-volatile computer-readable medium for execution by a data processing apparatus or for controlling the operation of the data processing apparatus. The computer-readable medium can be a machine-readable storage device, a machine-readable storage substrate, a storage device, a material composition that influences machine-readable propagated signals, or one or more of these. The terms "data processing unit" or "data processing apparatus" include all means, devices, and machines for processing data, including, for example, programmable processors, computers, or multiprocessors or computer groups. In addition to hardware, the apparatus may also include code that creates an execution environment for a computer program, such as code constituting processor firmware, a protocol stack, a database management system, an operating system, or combinations thereof. The propagated signals are artificially generated signals, such as machine-generated electrical, optical, or electromagnetic signals, which are generated to encode information for transmission to a suitable receiver device.

[0068] Computer programs (also known as programs, software, software applications, scripts, or code) can be written in any programming language (including compiled or interpreted languages) and can be deployed in any form, including as standalone programs or as modules, components, subroutines, or other units suitable for use in a computing environment. A computer program does not necessarily correspond to a file in a file system. A program can be stored in a portion of a file that holds other programs or data (e.g., one or more scripts stored in a markup language document), in a single file dedicated to that program, or in multiple coordinating files (e.g., a file storing one or more modules, subroutines, or portions of code). Computer programs can be deployed and executed on one or more computers located at a single site or distributed across multiple sites interconnected by a communication network.

[0069] The processing and logic flows described in this document can be executed by one or more programmable processors that execute one or more computer programs to perform functions by manipulating input data and generating outputs. The processing and logic flows can also be executed by special-purpose logic circuitry, and the devices can be implemented as special-purpose logic circuitry, such as FPGAs (Field-Programmable Gate Arrays) or ASICs (Application-Specific Integrated Circuits).

[0070] For example, processors suitable for executing computer programs include general-purpose and special-purpose microprocessors, as well as any one or more of any type of digital computer. Typically, the processor receives instructions and data from read-only memory or random access memory, or both. The basic components of a computer are a processor that executes instructions and one or more storage devices that store the instructions and data. Typically, a computer will also include one or more mass storage devices for storing data, such as magnetic disks, magneto-optical disks, or optical disks, or operatively coupled to receive data from or transfer data to mass storage devices, or both. However, a computer does not necessarily have such devices. Computer-readable media suitable for storing computer program instructions and data include all forms of non-volatile memory, media, and memory devices, including, for example, semiconductor memory devices such as erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), and flash memory devices; magnetic disks, such as internal hard disks or removable disks; magneto-optical disks; and optical disc read-only memory (CD ROM) and digital versatile optical disc read-only memory (DVD-ROM). The processor and memory may be supplemented by dedicated logic circuitry or incorporated into dedicated logic circuitry.

[0071] While this patent document contains numerous details, it should not be construed as limiting the scope of any invention or claim, but rather as a description of features of specific embodiments of a particular invention. Certain features described in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various functions described in the context of a single embodiment may also be implemented individually in multiple embodiments, or in any suitable sub-combination. Furthermore, although the foregoing features may be described as functioning in certain combinations, or even initially claimed to be so, in certain circumstances, one or more features from a combination of claims may be removed from the combination, and a combination of claims may refer to a sub-combination or a variation of a sub-combination.

[0072] Similarly, although the operations are described in a specific order in the accompanying drawings, this should not be construed as requiring the specific order or sequence shown to perform such operations, or all the described operations, in order to obtain the desired result. Furthermore, the separation of various system components in the embodiments of this patent document should not be construed as requiring such separation in all embodiments.

[0073] Only some implementations and examples are described; other implementations, enhancements, and variations can be made based on the content described and illustrated in this patent document.

[0074] When no intermediate component exists other than a line, trace, or other medium between the first and second components, the first component is directly coupled to the second component. When an intermediate component other than a line, trace, or other medium exists between the first and second components, the first component is indirectly coupled to the second component. The term "coupling" and its variations include direct coupling and indirect coupling. Unless otherwise stated, the term "about" is used to mean a range including upper and lower 10% of the value.

[0075] While several embodiments are provided in this disclosure, it should be understood that the disclosed systems and methods may be embodied in many other specific forms without departing from the spirit or scope of this disclosure. The present examples are intended to be illustrative rather than restrictive and are not limited to the details given. For example, various elements or components may be combined or integrated into another system, or certain features may be omitted or not implemented.

[0076] In the several embodiments provided herein, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative; for example, the flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0077] Furthermore, without departing from the scope of this disclosure, the discrete or individual technologies, systems, subsystems, and methods described and illustrated in the various embodiments may be combined or integrated with other systems, modules, technologies, or methods. Other items shown or discussed as coupled may be directly connected or indirectly coupled or communicated via some interface, device, or intermediate component in an electrical, mechanical, or other manner. Those skilled in the art can identify other examples of changes, substitutions, and modifications without departing from the spirit and scope of this disclosure.

Claims

1. A remote-controlled forklift control and detection system, characterized in that, include: At least one receiving device (1) and several forklifts (2); in Each receiving device (1) is deployed in the site (3) so that the communication range of the receiving device (1) covers the site (3), and each forklift (2) is deployed in the site (3); When any receiving device (1) is activated, the receiving device (1) is configured to obtain the communication strength between each forklift (2) and the receiving device (1) to allocate each forklift (2) to communicate with the receiving device (1) on a 160MHz channel in either direct connection mode or relay mode. as well as When any one of the receiving devices (1) is activated, the receiving device (1) is also configured to obtain the total number of forklifts (2) so that the remaining receiving devices (1) can be activated after the limit number is exceeded. The receiving device (1) is configured to acquire the total number of forklifts (2) performing direct-drive mode; When the total number of forklifts (2) in direct connection mode is less than the first set number, the receiving device (1) is also configured to allocate a corresponding channel to communicate with each forklift (2); When the total number of stackers (2) in direct connection mode is greater than the first set number but less than the limit number, the receiving device (1) is also configured to divide each stacker (2) into several groups and allocate corresponding channels to communicate with each stacker (2) group. When the total number of forklifts (2) in direct connection mode is greater than the first set number but less than the limit number, the receiving device (1) is configured to divide each forklift (2) into several groups according to the different communication strength range between the forklifts (2) and the receiving device (1); When the number of stacker (2) groups is within the second set number threshold, the receiving device (1) is also configured to alternately distribute to each stacker (2) group in sequence according to the first channel, the third channel, the fifth channel, the seventh channel, the second channel, the fourth channel, the sixth channel, and the eighth channel. When the number of stacker (2) groups exceeds the second set number threshold, the receiving device (1) is also configured to alternately distribute to each stacker (2) group in sequence according to the first channel, the fifth channel, the second channel, the sixth channel, the third channel, the seventh channel, the fourth channel, and the eighth channel.

2. The remote-controlled forklift control and detection system as described in claim 1, characterized in that, When any receiving device (1) is activated, the receiving device (1) is configured to obtain the communication strength between each forklift (2) and the receiving device (1); When the communication strength between any forklift machine (2) and the receiving device (1) exceeds the first preset communication strength, the receiving device (1) is configured to set the forklift machine (2) to communicate with the receiving device (1) in direct connection mode, or When the communication strength between any stacker (2) and the receiving device (1) does not exceed the first set communication strength, the receiving device (1) is configured to set the stacker (2) to perform relay mode and communicate with the receiving device (1).

3. The remote-controlled forklift control and detection system as described in claim 1, characterized in that, Each stacker crane (2) in direct connection mode scans the surrounding stacker cranes (2) in relay mode to obtain the communication strength between the stacker crane (2) in direct connection mode and the surrounding stacker cranes (2) in relay mode, so that each stacker crane (2) in relay mode is bound to the corresponding stacker crane (2) in direct connection mode. Each stacker (2) in relay mode communicates with the receiving device (1) through the corresponding stacker (2) in direct connection mode.

4. The remote-controlled forklift control and detection system as described in claim 3, characterized in that, Any stacker (2) performing direct connection mode is configured to divide the stackers (2) performing relay mode into several groups according to the different communication strength range between the stacker (2) and the stackers (2) performing relay mode, and the stacker (2) performing direct connection mode is bound to the stacker (2) group with the strongest communication strength range.

5. The remote-controlled forklift control and detection system as described in claim 4, characterized in that, When any stacker (2) in relay mode is within the range of the strongest communication strength of at least two stackers (2) in direct mode, the stacker (2) in relay mode selects one of the stackers (2) in direct mode for binding.

6. The remote-controlled forklift control and detection system as described in claim 5, characterized in that, When the number of stackers (2) in relay mode bound to any stacker (2) in direct connection mode exceeds the upper limit, each stacker (2) in relay mode that exceeds the upper limit shall switch to the stacker (2) in direct connection mode with which it has the strongest communication strength to bind.

7. The remote-controlled forklift control and detection system as described in claim 5, characterized in that, When any stacker (2) in relay mode is not within the strongest communication strength range of the stacker (2) in direct connection mode, the stacker (2) switches to bind to the stacker (2) in direct connection mode with the strongest communication strength.

8. A method for operating the remote-controlled forklift control and detection system as described in any one of claims 1-7, characterized in that, include: When any receiving device (1) is activated, the receiving device (1) obtains the communication strength between each forklift (2) and the receiving device (1) to allocate each forklift (2) to communicate with the receiving device (1) in direct connection mode or relay mode respectively. When any receiving device (1) is activated, the receiving device (1) obtains the total number of forklifts (2) so that the remaining receiving devices (1) can be activated after the limit number is exceeded.

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