Disclosure of Invention
The invention aims to provide an automatic weighing method and an automatic weighing system for a test sample, which are used for solving the problems that in the prior art, the weighing process is carried out manually, a large amount of manpower is required, and the efficiency is low.
In a first aspect, an embodiment of the present application provides a method for automatically weighing a test sample, including the steps of:
Acquiring and sending a plurality of single product variety weighing information in inspection and detection to code spraying equipment;
Inquiring the category information in the weighing information of each single product in a preset category density table to obtain corresponding density information;
calculating according to the quality information and the corresponding density information in the weighing information of each single product variety to obtain the volume information of each single product variety;
identifying preset foods by adopting two-dimension code identification according to the quality information of each single product variety, generating an identification result and sending the identification result to the grabbing equipment;
And obtaining and generating a sample weighing record according to the grabbing result information of the grabbing equipment.
In the implementation process, a plurality of single product variety weighing information in inspection and detection is obtained and sent to a code spraying device; then, according to the item information in each item weighing information, inquiring in a preset item density table to obtain corresponding density information; then calculating according to the quality information and the corresponding density information in the weighing information of each single product variety to obtain the volume information of each single product variety; then, the volume information of each single product variety is sent to grabbing equipment; the grabbing equipment grabs according to the volume information, and then obtains and generates a detection sample weighing record according to grabbing result information of the grabbing equipment, so that automatic weighing can be realized, a large amount of manpower is not required, and the weighing efficiency is improved.
Based on the first aspect, in some embodiments of the invention, the method further comprises the steps of:
and classifying the plurality of single product varieties according to the quality information in the grabbing results to obtain classification results and sending the classification results to grabbing equipment.
Based on the first aspect, in some embodiments of the present invention, the step of acquiring and generating the automatic sample weighing record of the inspection sample according to the grasping result information of the grasping device includes the steps of:
A1: acquiring and extracting actual quality information of each single sample in the grabbing result information of grabbing equipment;
A2, calculating according to a mass calculation formula according to the volume information of each single variety to obtain theoretical mass information of each single variety;
a3, comparing the actual quality information of each single sample with the corresponding theoretical quality information of the single variety to generate a plurality of comparison results;
A4, comparing each comparison result with a preset threshold value respectively, and if the comparison result is in a preset threshold value interval, generating effective grabbing result information; if the comparison result is outside the preset threshold value interval, executing the step A1;
a5: and generating a sample weighing record according to the effective grabbing result information.
Based on the first aspect, in some embodiments of the invention, the method further comprises the steps of:
Obtaining weighing information of each single sample;
And generating weighing index information of each single sample according to the actual quality information and the weighing information of each single sample.
In a second aspect, an embodiment of the present application provides an automatic weighing system for an inspection test sample, including:
the first information acquisition module is used for acquiring and sending a plurality of single product variety weighing information in inspection and detection to the code spraying equipment;
The density inquiry module is used for inquiring in a preset product density table according to the product information in the product variety weighing information to obtain corresponding density information;
The first calculation module is used for calculating the volume information of each single product variety according to the quality information and the corresponding density information in the weighing information of each single product variety;
the information sending module is used for sending the volume information of each single product variety to the grabbing equipment;
And the result generation module is used for acquiring and generating a sample weighing record according to the grabbing result information of the grabbing equipment.
In the implementation process, the first information acquisition module 110 acquires and sends the weighing information of the plurality of single product varieties in the inspection and detection to the code spraying equipment; then the density inquiry module 120 inquires in a preset category density table according to the category information in the category weighing information of each single item to obtain corresponding density information; then, the first calculation module 130 calculates to obtain the volume information of each single product variety according to the quality information and the corresponding density information in the weighing information of each single product variety; the information transmitting module 140 then transmits the volume information of each individual item to the grasping apparatus; the grabbing device grabs according to the volume information, and then the result generation module 150 acquires and generates a detection sample weighing record according to the grabbing result information of the grabbing device, so that automatic weighing can be realized, a large amount of manpower is not required, and the weighing efficiency is improved.
Based on the second aspect, in some embodiments of the invention, further comprising:
and the classification module is used for classifying the plurality of single product varieties according to the quality information in the grabbing results, obtaining the classification results and sending the classification results to the grabbing equipment.
Based on the second aspect, in some embodiments of the invention, the result generating module includes:
The quality acquisition unit is used for acquiring and extracting actual quality information of each single sample in the grabbing result information of the grabbing equipment;
The calculating unit is used for calculating and obtaining theoretical quality information of each single variety according to a quality calculation formula according to the volume information of each single variety;
The comparison unit is used for comparing the actual quality information of each single sample with the corresponding theoretical quality information of the single variety to generate a plurality of comparison results;
The grabbing result information generating unit is used for comparing each comparison result with a preset threshold value respectively, and if the comparison result is in a preset threshold value interval, grabbing result information is generated; if the comparison result is outside the preset threshold value interval, acquiring and extracting actual quality information of each single sample in the grabbing result information of the grabbing device;
And the sample weighing record unit is used for generating a sample weighing record according to the effective grabbing result information.
Based on the second aspect, in some embodiments of the invention, further comprising:
the third information acquisition module is used for acquiring weighing information of each single sample;
And the index information generation module is used for generating weighing index information of each single sample according to the actual quality information and the weighing information of each single sample.
In a third aspect, an embodiment of the present application provides an electronic device, including a memory for storing one or more programs; a processor. The method as described in any one of the first aspects is implemented when the one or more programs are executed by the processor.
In a fourth aspect, an embodiment of the present application provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method as described in any of the first aspects above.
The embodiment of the invention has at least the following advantages or beneficial effects:
The embodiment of the invention provides an automatic weighing method and an automatic weighing system for a test sample, which are characterized in that a plurality of single product variety weighing information in test is obtained and sent to code spraying equipment; then, according to the item information in each item weighing information, inquiring in a preset item density table to obtain corresponding density information; then calculating according to the quality information and the corresponding density information in the weighing information of each single product variety to obtain the volume information of each single product variety; then, the volume information of each single product variety is sent to grabbing equipment; the grabbing equipment grabs according to the volume information, and then obtains and generates a detection sample weighing record according to grabbing result information of the grabbing equipment, so that automatic weighing can be realized, a large amount of manpower is not required, and the weighing efficiency is improved. The grabbing equipment classifies and places the corresponding single product varieties according to the classification result, so that the user can check and take the single product varieties conveniently. The weighing index information of each single sample is generated, so that a user can conveniently inquire the weighing condition, and the effectiveness of data is ensured.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Examples
Some embodiments of the present application are described in detail below with reference to the accompanying drawings. The various embodiments and features of the embodiments described below may be combined with one another without conflict.
Referring to fig. 1, fig. 1 is a flowchart of an automatic weighing method for a test sample according to an embodiment of the present invention. The automatic weighing method for the test sample comprises the following steps:
Step S110: acquiring and sending a plurality of single product variety weighing information in inspection and detection to code spraying equipment; the single product variety weighing information comprises the variety of the single product variety, the volume of the single product variety, project information to be detected and the like. The inspection and detection includes a plurality of single product varieties which can be solid or liquid. For example: the inspection and detection A comprises fat meat, streaky pork, pure lean meat, eggplant, tomato sauce and watermelon juice. The obtaining and sending the plurality of single product variety weighing information in the inspection and detection to the code spraying equipment can be manually input, can be automatically obtained through identifying a centrifuge tube (cup), and can also be identifying the preset food by adopting a two-dimension code identification mode, so that the corresponding single product variety weighing information is obtained. The above-described manner of automatically obtaining by identifying a centrifuge tube (cup) is to control the gripping device to grip the centrifuge tube (cup) corresponding to the sample mass according to the volume of the individual item included in the inspection and detection, for example: there may be 5 centrifuge tubes (cups) which grip 5g, 2 centrifuge tubes (cups) which grip 10 g. The centrifuge tube (cup) is then numbered and code-coded, for example, the centrifuge tube (cup) is separately numbered and code-coded with NPC001 (packaged agricultural product serial number 1). And finally, identifying the numbers through code scanning to obtain the single product variety to be packaged. The code spraying equipment sprays codes or sticks labels to the centrifuge tube (cup) according to the acquired weighing information of a plurality of single product varieties, and the content of the code spraying equipment comprises numbers, names, detected project information and the like.
Step S120: inquiring the category information in the weighing information of each single product in a preset category density table to obtain corresponding density information; the preset item density table includes various items and corresponding density information, for example: pork with a density of 0.975g/cm3 and eggplant with a density of 0.55g/cm 3. The query refers to sequentially querying the category information in the weighing information of each single product category in a preset category density table, and further extracting the corresponding density information.
Step S130: calculating according to the quality information and the corresponding density information in the weighing information of each single product variety to obtain the volume information of each single product variety; the above calculation refers to a calculation formula according to mass: mass = density X volume, volume information can be obtained.
Step S140: the volume information of each single product variety is sent to grabbing equipment; the gripping device grips in preset articles according to the volume information, the preset articles comprise various single article varieties, and the various single article varieties comprise a plurality of qualities, for example: comprises 5g of pork, 10g of pork, 13g of eggplant and the like. The grabbing device can acquire image information of various single product varieties through the camera according to the volume information of the various single product varieties so as to identify the single product varieties. Firstly, acquiring two-dimensional code information through a camera, then identifying the two-dimensional code information to obtain article information in the two-dimensional code, then judging whether the article information is identical with the volume information of each single article variety, if so, generating an identification result, sending the identification result to a grabbing device, and if not, continuously acquiring the next two-dimensional code information to further identify. The two-dimensional code identification technology belongs to the prior art and will not be described in detail herein. The generated identification result comprises information such as whether the identification is successful, the sample number, the name, the detection method, the detection item, the last storage position and the like. The grabbing device comprises a mechanical arm and the like, and the mechanical arm grabs in preset food according to the identification result to obtain corresponding single-product samples. The grabbing device grabs according to the identification result, namely, positions according to the position information of the identified object in the identification result, and then grabs to obtain a corresponding single sample. And judging whether the sample detection item is combined with a centrifuge tube (cup) transmitted by the code spraying equipment, judging whether the sample detection item is in a threshold interval, generating a sample weighing record if the sample detection item is in the threshold interval, and restarting if the sample detection item is not in the threshold interval.
Step S150: and obtaining and generating a sample weighing record according to the grabbing result information of the grabbing equipment. The grabbing equipment grabs the preset food according to the identification result to obtain a corresponding single product sample, and generates grabbing result information. The grabbing result information comprises actual quality information, grabbing time information, grabbing equipment information and the like of each single sample. And simultaneously recording the balance number, the temperature and the humidity. The vessel is sprayed with important information such as sample numbers, names, detection items, methods, serial numbers and the like. And finally, transmitting the sample to a classification place according to the same sample category, the same detection item and the same detection method. The generated sample weighing record comprises effective information such as grabbing result information, balance numbers, temperatures, humidity, sample weighing time, sample weighing personnel and the like. The process for generating the automatic sample weighing record of the detection sample comprises the following steps:
Firstly, acquiring and extracting actual quality information of each single sample in the grabbing result information of grabbing equipment; the actual quality information comprises important information such as quality information, temperature and humidity, sample numbers, detection items, instrument numbers, operators, monitoring records and the like. The actual mass information of each single sample can be obtained by placing the single sample on a corresponding centrifugal plastic tube (cup) through a grabbing device and then placing the centrifugal plastic tube (cup) on a weighing scale for weighing. For example: and 5g (+ -5%) of pork and 10g (+ -5%) of eggplant with specific quantity are grabbed at one time (can be grabbed according to quantity), the corresponding centrifugal plastic pipes are placed into the eggplant, and then the centrifugal plastic pipes are placed on a weighing scale for weighing, so that the actual mass information of the pork is 4.9g, and the actual mass information of the eggplant is 9.9g.
Then, according to the volume information of each single variety, calculating according to a quality calculation formula to obtain theoretical quality information of each single variety; the mass calculation formula is as follows: m=ρv, where m is mass, ρ is density, and v is volume.
Then, comparing the actual quality information of each single sample with the corresponding single variety theoretical quality information to generate a plurality of comparison results; the comparison refers to calculating the difference value between the actual quality information of each single sample and the theoretical quality information of the corresponding single variety, and the difference value is the comparison result. For example: the actual mass information of pork is 10.31g, the theoretical mass information is 9.50-10.50g, and the comparison result is feasible. The actual mass information of the eggplant is 10.00g, the theoretical mass information is 9.50-10.50g, and the comparison result is feasible. The actual mass information of the eggplant is 11.00g, the theoretical mass information is 9.50-10.50g, and the comparison result is feasible.
Then, comparing each comparison result with a preset threshold value respectively, and if the comparison result is in a preset threshold value interval, generating effective grabbing result information; and if the comparison result is outside the preset threshold value interval, acquiring and extracting actual quality information of each single sample in the grabbing result information of the grabbing device. The preset threshold may be set according to a standard, the gripping device may allow an error when gripping, and the error range may be used as the preset threshold. The comparison means that the comparison result is compared with a preset threshold value interval, if the comparison result is in the preset threshold value interval, the error is considered to be in an allowable range, effective grabbing result information is generated, the effective grabbing result information comprises grabbing results, quality information, an error range and the like, and the grabbing results comprise grabbing success and unsuccessful grabbing; if the comparison result is not in the preset threshold value, the error allowance range is considered to be exceeded, and when the error allowance range is needed to be re-grabbed, firstly, the volume is calculated again through the existing quality and density, and then the effective grabbing result information is obtained. And re-acquiring and extracting the actual quality information of each single sample in the grabbing result information of the grabbing device. For example: the comparison result of pork is in the threshold value interval, and is effective. And if the pork is not in the threshold interval, re-grabbing the pork, and acquiring and extracting actual quality information of the pork in grabbing result information of grabbing equipment.
And finally, generating a sample calling record according to the effective grabbing result information. The sample weighing record comprises effective grabbing result information of each single sample. The process of generating the sample weighing record refers to that the effective grabbing result information of each single sample is arranged, so that the sample weighing record is obtained.
In the implementation process, a plurality of single product variety weighing information in inspection and detection is obtained and sent to a code spraying device; then, according to the item information in each item weighing information, inquiring in a preset item density table to obtain corresponding density information; then calculating according to the quality information and the corresponding density information in the weighing information of each single product variety to obtain the volume information of each single product variety; then, the volume information of each single product variety is sent to grabbing equipment; the grabbing equipment grabs according to the volume information, and then obtains and generates a detection sample weighing record according to grabbing result information of the grabbing equipment, so that automatic weighing can be realized, a large amount of manpower is not required, and the weighing efficiency is improved.
Wherein, still include the following step:
And classifying the plurality of single product varieties according to the quality information in the grabbing results to obtain classification results and sending the classification results to grabbing equipment. The classification refers to classifying the captured single product varieties according to quality information, classifying the single product varieties with the same quality information into one type, and finally obtaining multiple classifications, wherein the classification results comprise multiple classifications and the single product varieties included under the multiple classifications. For example: sample name: pork, sample number: a0001 number, detection method: GB/T21312-2008, serial number: no. 1. Sample name: pork, sample number: a0002, detection method: GB/T21312-2008. Sample name: pork, sample number: a0001 number, detection method: GB/T21317-2008, serial number: no. 1. Sample name: pork, sample number: a0002, detection method: GB/T21317-2008.
Wherein, still include the following step:
Firstly, obtaining weighing information of each single sample; the weighing information of each single sample comprises the temperature, the humidity and the corresponding information during weighing. The temperature and humidity information can be obtained by installing a sensor on the scale, and the corresponding information comprises information such as a scale number, an instrument number and the like.
And then weighing index information of each single sample is generated according to the actual quality information and the weighing information of each single sample. The weighing index information of each single sample comprises quality information of each single sample, temperature and humidity during weighing, corresponding information and the like. The step of generating the weighing index information of each single sample refers to arranging the quality information, the temperature and humidity during weighing and the corresponding information of each single sample so as to obtain the corresponding weighing index information. The weighing index information of each single sample is generated, so that a user can conveniently inquire the weighing condition, and the effectiveness of data is ensured.
After the special quantity of single products are grabbed and put into the corresponding centrifugal plastic pipes, the serial numbers, the detection index items A and the detection method GB500 (national standard) can be sprayed on the code marks, so that the next step of experimenters can check the special quantity of single products conveniently.
After the weighing is finished, the centrifugal plastic pipe (cup) can be cleaned so as to facilitate the next weighing.
Based on the same inventive concept, the invention also provides a system for automatically weighing the test sample, refer to fig. 2, and fig. 2 is a block diagram of a system for automatically weighing the test sample according to an embodiment of the invention. The system for automatically weighing the test sample comprises:
a first information acquisition module 110, configured to acquire and send a plurality of single product variety weighing information in inspection and detection to a code spraying device;
the density inquiry module 120 is configured to inquire in a preset category density table according to category information in each single-category weighing information, so as to obtain corresponding density information;
The first calculation module 130 is configured to calculate volume information of each single product variety according to the quality information and the corresponding density information in the weighing information of each single product variety;
The information sending module 140 is configured to identify a preset food by using two-dimensional code identification according to quality information of each single product variety, generate an identification result, and send the identification result to the grabbing device;
The result generating module 150 is configured to obtain and generate a sample record according to the capturing result information of the capturing device.
In the implementation process, the first information acquisition module 110 acquires and sends the weighing information of the plurality of single product varieties in the inspection and detection to the code spraying equipment; then the density inquiry module 120 inquires in a preset category density table according to the category information in the category weighing information of each single item to obtain corresponding density information; then, the first calculation module 130 calculates to obtain the volume information of each single product variety according to the quality information and the corresponding density information in the weighing information of each single product variety; the information transmitting module 140 then transmits the volume information of each individual item to the grasping apparatus; the grabbing device grabs according to the volume information, and then the result generation module 150 acquires and generates a detection sample weighing record according to the grabbing result information of the grabbing device, so that automatic weighing can be realized, a large amount of manpower is not required, and the weighing efficiency is improved.
Wherein, still include:
and the classification module is used for classifying the plurality of single product varieties according to the quality information in the grabbing results, obtaining the classification results and sending the classification results to the grabbing equipment.
Wherein, the result generating module 150 includes:
The quality acquisition unit is used for acquiring and extracting actual quality information of each single sample in the grabbing result information of the grabbing equipment;
The calculating unit is used for calculating and obtaining theoretical quality information of each single variety according to a quality calculation formula according to the volume information of each single variety;
The comparison unit is used for comparing the actual quality information of each single sample with the corresponding theoretical quality information of the single variety to generate a plurality of comparison results;
The grabbing result information generating unit is used for comparing each comparison result with a preset threshold value respectively, and if the comparison result is in a preset threshold value interval, grabbing result information is generated; if the comparison result is outside the preset threshold value interval, acquiring and extracting actual quality information of each single sample in the grabbing result information of the grabbing device;
And the sample weighing and recording unit is used for generating automatic sample weighing and recording of the test sample according to the effective grabbing result information.
Wherein, still include:
the third information acquisition module is used for acquiring weighing information of each single sample;
And the index information generation module is used for generating weighing index information of each single sample according to the actual quality information and the weighing information of each single sample.
Referring to fig. 3, fig. 3 is a schematic block diagram of an electronic device according to an embodiment of the present application. The electronic device comprises a memory 101, a processor 102 and a communication interface 103, wherein the memory 101, the processor 102 and the communication interface 103 are electrically connected with each other directly or indirectly to realize data transmission or interaction. For example, the components may be electrically connected to each other via one or more communication buses or signal lines. The memory 101 may be used to store software programs and modules, such as program instructions/modules corresponding to an automatic test sample weighing system according to an embodiment of the present application, and the processor 102 executes the software programs and modules stored in the memory 101, thereby performing various functional applications and data processing. The communication interface 103 may be used for communication of signaling or data with other node devices.
The Memory 101 may be, but is not limited to, a random access Memory (RandomAccessMemory, RAM), a Read Only Memory (ROM), a programmable Read Only Memory (Programmable Read-Only Memory, PROM), an erasable Read Only Memory (Erasable Programmable Read-Only Memory, EPROM), an electrically erasable Read Only Memory (Electric Erasable Programmable Read-Only Memory, EEPROM), etc.
The processor 102 may be an integrated circuit chip with signal processing capabilities. The processor 102 may be a general purpose processor including a central processor (CentralProcessingUnit, CPU), a network processor (NetworkProcessor, NP), etc.; but may also be a digital signal processor (DIGITAL SIGNAL Processing, DSP), application SPECIFIC INTEGRATED Circuit (ASIC), field-Programmable gate array (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware components.
It will be appreciated that the configuration shown in fig. 3 is merely illustrative, and that the electronic device may also include more or fewer components than shown in fig. 3, or have a different configuration than shown in fig. 3. The components shown in fig. 3 may be implemented in hardware, software, or a combination thereof.
In the embodiments provided in the present application, it should be understood that the disclosed system and method may be implemented in other manners as well. The system embodiments described above are merely illustrative, for example, of the flowcharts and block diagrams in the figures that illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in the embodiments of the present application may be integrated together to form a single part, or each module may exist alone, or two or more modules may be integrated to form a single part.
The above functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on this understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or a part of the technical solution in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the above-described method of the various embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In summary, according to the method and the system for automatically weighing the inspection and detection sample provided by the embodiment of the application, the weighing information of a plurality of single product varieties in inspection and detection is obtained and sent to the code spraying equipment; then, according to the item information in each item weighing information, inquiring in a preset item density table to obtain corresponding density information; then calculating according to the quality information and the corresponding density information in the weighing information of each single product variety to obtain the volume information of each single product variety; then, the volume information of each single product variety is sent to grabbing equipment; the grabbing equipment grabs according to the volume information, and then obtains and generates a detection sample weighing record according to grabbing result information of the grabbing equipment, so that automatic weighing can be realized, a large amount of manpower is not required, and the weighing efficiency is improved. The grabbing equipment classifies and places the corresponding single product varieties according to the classification result, so that the user can check and take the single product varieties conveniently. The weighing index information of each single sample is generated, so that a user can conveniently inquire the weighing condition, and the effectiveness of data is ensured.
The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
It will be evident to those skilled in the art that the application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.