CN113515064A - Information transmission platform for refrigerating and distributing medical medicines and transmission method thereof - Google Patents
Information transmission platform for refrigerating and distributing medical medicines and transmission method thereof Download PDFInfo
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- CN113515064A CN113515064A CN202110338419.8A CN202110338419A CN113515064A CN 113515064 A CN113515064 A CN 113515064A CN 202110338419 A CN202110338419 A CN 202110338419A CN 113515064 A CN113515064 A CN 113515064A
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Abstract
An information transmission platform for the refrigeration distribution of medical medicines and a transmission method thereof comprise: the single chip microcomputer of the distribution system of the vehicle-mounted refrigeration device is connected with the WIFI module, and the vehicle-mounted computer is located in a vehicle-mounted WLAN of the refrigerator car; the single chip microcomputer comprises a transmission component; the transfer assembly can include: the receiving unit I, the deriving unit, the compensating unit and the transmitting unit; the vehicle-mounted computer comprises a receiving component; the receiving assembly can comprise a second receiving unit and a monitoring unit. The defects that in the prior art, when the single chip microcomputer transmits the information of the refrigeration distribution of the medical medicines in the refrigerator car to the vehicle-mounted computer, the complexity of a framing assembly of the information of the refrigeration distribution of the medical medicines is increased, the length of time for transmitting very small information cannot be ensured, or the single chip microcomputer cannot be practical under a very large information frame loss rate are effectively overcome.
Description
Technical Field
The invention relates to the technical field of medical medicine refrigeration distribution, in particular to an information transmission platform for medical medicine refrigeration distribution and a transmission method thereof.
Background
Drugs are susceptible to a variety of factors, particularly temperature, and have gained increased attention in recent years. Cold chain management of refrigerated drugs is closely related to the medication safety of patients. The country keeps high importance on the safety of the medicines. The national drug inspection bureau provides new regulations for the transportation of drugs: all pharmaceutical companies must have refrigerated vehicles for the medical drugs to be refrigerated, and transport of the medical drugs to be refrigerated must be carried out by using the refrigerated vehicles for the medical drugs to be refrigerated, which are most typically vaccines.
The refrigerated truck of medical treatment medicine that needs to refrigerate has also formed on-vehicle cold storage device delivery system, and it generally includes as the singlechip of system controller and as display module's on-vehicle computer, and the WIFI module is being connected to this singlechip, on-vehicle computer is in the on-vehicle WLAN of refrigerated truck, and like this, the singlechip just can link to each other with on-vehicle computer via the WIFI module, and with this, the singlechip sends the information of the cold-stored delivery of medical treatment medicine in the refrigerated truck to on-vehicle computer and deposits and show.
The unreliable information transmission service is generally used in the vehicle-mounted WLAN during the period of transmitting the information of the refrigeration distribution of the medical medicines in the refrigerator car to the vehicle-mounted computer, and the unreliable information transmission service is based on non-handshake link, so that the information transmission performance of the refrigeration distribution of the medical medicines is weakened or cannot be used due to the fact that information frames are lost along with the poor information transmission performance of the vehicle-mounted WLAN during the information transmission period.
To overcome the state of information frame loss, the corresponding modes can be two: one is to overcome the missing state by restoring the mode of the information frame, i.e. to add information in the information frame format to restore the missing information frame via some specifications; another is to overcome the missing state via the information frame pattern for compensation, i.e. to compensate the missing information frame via some specification on the delivery. However, these modes are associated with the following drawbacks: the complexity of the framing assembly of the information of the refrigeration distribution of the medical drugs is increased, and the method cannot ensure the long time of information transmission or be practical under the condition of large information frame loss rate.
Disclosure of Invention
In order to solve the problems, the invention provides an information transmission platform for the refrigeration and distribution of medical drugs and a transmission method thereof, which effectively overcome the defects that the complexity of a framing assembly for the refrigeration and distribution information of the medical drugs is increased when a single chip microcomputer transmits the refrigeration and distribution information of the medical drugs in a refrigerator car to a vehicle-mounted computer, and the small information transmission time cannot be ensured or the information transmission platform cannot be practical under the large information frame loss rate in the prior art. The framing component is used for overcoming the defect that information frames are lost along with poor information transmission performance of a vehicle-mounted WLAN during information transmission under the conditions that the complexity of the framing component of information for refrigerating and distributing medical medicines is not increased, the small information transmission time is ensured, and the framing component is still usable under the condition of a large loss rate.
In order to overcome the defects in the prior art, the invention provides a solution for an information transmission platform for refrigerating and distributing medical drugs and a transmission method thereof, which comprises the following specific steps:
an information delivery platform for refrigerated distribution of medical drugs, comprising:
the single chip microcomputer of the distribution system of the vehicle-mounted refrigeration device is connected with the WIFI module, and the vehicle-mounted computer is located in a vehicle-mounted WLAN of the refrigerator car;
the single chip microcomputer comprises a transmission component; the transfer assembly can include: the receiving unit I, the deriving unit, the compensating unit and the transmitting unit;
correspondingly, the vehicle-mounted computer comprises a receiving component; the receiving assembly can comprise a second receiving unit and a monitoring unit;
the receiving unit I is used for receiving the state response message of the vehicle-mounted WLAN transmitted by the last information frame of the receiving assembly;
the deduction unit is used for deducing the compensation rate by means of the state response message of the vehicle-mounted WLAN;
and a transfer unit for forming and transferring the information frame at this time by means of the offset rate.
The derivation unit is also used for assigning an initial value to the offset rate;
and executing variation on the initialized value of the make-up rate by means of the state response message of the vehicle-mounted WLAN to form the make-up rate.
The status response message of the vehicle-mounted WLAN comprises: the deduction unit is further used for deducing the compensation rate of the loss rate, the compensation rate of the time length of the information frame from the transmission to the receiving of the vehicle-mounted computer and the compensation rate of the stability of the vehicle-mounted WLAN;
obtaining a coefficient of a compensation rate of the loss rate, a coefficient of a compensation rate of a time length from the transmission of the information frame to the reception of the information frame by the vehicle-mounted computer and a coefficient of a compensation rate of the stability of the vehicle-mounted WLAN;
and deducing the compensation rate by means of the compensation rate of the loss rate, the compensation rate of the time length from the transmission of the information frame to the reception of the vehicle-mounted computer, the compensation rate of the stability of the vehicle-mounted WLAN, the coefficient of the compensation rate of the loss rate, the coefficient of the compensation rate of the time length from the transmission of the information frame to the reception of the vehicle-mounted computer and the coefficient of the stability compensation rate of the vehicle-mounted WLAN.
The information frame at this time comprises an information frame for making up and an information frame to be transmitted, and the transmission unit is further used for deducing the number of the making up information frames by means of the making up rate;
obtaining the information frame for compensation from a delivery queue by virtue of the number of the information frame for compensation and delivering the information frame for compensation and the information frame to be delivered to the receiving component.
Further, the receiving unit two is configured to receive the information frame transmitted by the transmitting component;
and the monitoring unit is used for forming a state response message of the vehicle-mounted WLAN by virtue of the information frame, and the state response message of the vehicle-mounted WLAN is used for commanding the transmission assembly to execute loss compensation.
Further, the information frame includes a sequence number of the information frame and a time point when the transmission unit starts to transmit the information frame, and the monitoring unit is further configured to form a status response message of the vehicle-mounted WLAN according to the sequence number of the information frame and the time point when the transmission unit starts to transmit the information frame.
A method of transferring an information transfer platform for refrigerated distribution of medical drugs, comprising:
the single chip microcomputer of the vehicle-mounted refrigerating device distribution system transmits refrigerating distribution information of the medical drugs in the refrigerator car to the vehicle-mounted computer for storage and display;
the method for transmitting the information of refrigeration distribution of the medical drugs in the refrigerator car to the vehicle-mounted computer by the single chip microcomputer comprises the following steps:
a-1, the receiving component receives the information frame transmitted by the transmitting component;
a-2, the receiving component forms a state response message of the vehicle-mounted WLAN by virtue of the information frame, and the state response message of the vehicle-mounted WLAN is used for commanding the transmitting component to execute loss compensation;
a-3, the transmitting component receives the state response message of the vehicle-mounted WLAN transmitted by the last information frame of the receiving component;
a-4, the transmission component deduces the compensation rate by means of the state response message of the vehicle-mounted WLAN;
a-5, the transfer component constructs and transfers the information frame at that time by virtue of the offset rate.
The method for forming the state response message of the vehicle-mounted WLAN by the receiving component through the information frame comprises the following steps:
after the receiving unit of the receiving component receives the information frame transmitted by the transmitting component, the monitoring unit of the receiving component deduces the received information frame to form a state response message of the vehicle-mounted WLAN; here, the status response message of the vehicle-mounted WLAN includes a loss rate, a time period from when the information frame is transmitted to when the information frame is received by the vehicle-mounted computer, and/or a stability of the vehicle-mounted WLAN; correspondingly, the monitoring unit deduces the loss rate of the vehicle-mounted WLAN in the transmission state, the time length from the transmission of the information frame to the reception of the vehicle-mounted computer and/or the stability of the vehicle-mounted WLAN by deducing the received information frame.
The method for forming the state response message of the vehicle-mounted WLAN comprises the following steps:
and forming a state response message of the vehicle-mounted WLAN by means of the sequence number of the information frame and the time when the transmission unit starts to transmit the information frame. The method for receiving the state response message of the vehicle-mounted WLAN transmitted by the last information frame of the receiving component by the transmitting component comprises the following steps:
a derivation unit of the transmission component receives the state response message of the vehicle-mounted WLAN transmitted by the monitoring unit; here, the status response message of the onboard WLAN is the status response message of the onboard WLAN obtained by the receiving component from the information frame last transmitted to the receiving component.
The method for deducing the offset rate by the delivery component through the state response message of the vehicle-mounted WLAN comprises the following steps:
b-1, giving an initial value to the offset rate;
and B-2, changing the initial value of the compensation rate by means of the state response message of the vehicle-mounted WLAN to form the compensation rate.
The method for forming the compensation rate by changing the initial value of the compensation rate through the state response message of the vehicle-mounted WLAN comprises the following steps:
c-1, deducing the compensation rate of the loss rate, the compensation rate of the time length from the transmission of the information frame to the reception of the information frame by the vehicle-mounted computer and the compensation rate of the stability of the vehicle-mounted WLAN;
c-2, obtaining a coefficient of the compensation rate of the loss rate, a coefficient of the compensation rate of the duration from the transmission of the information frame to the reception of the vehicle-mounted computer and a coefficient of the compensation rate of the stability of the vehicle-mounted WLAN;
and C-3, deducing the compensation rate by means of the compensation rate of the loss rate, the compensation rate of the time length from the transmission of the information frame to the receiving of the vehicle-mounted computer, the compensation rate of the stability of the vehicle-mounted WLAN, the coefficient of the compensation rate of the loss rate, the coefficient of the compensation rate of the time length from the transmission of the information frame to the receiving of the vehicle-mounted computer and the coefficient of the stability compensation rate of the vehicle-mounted WLAN.
The method for deducing the make-up rate of the loss rate, the make-up rate of the time length from the transmission of the information frame to the reception of the vehicle-mounted computer and the stability of the vehicle-mounted WLAN respectively by the deduction unit by means of the loss rate, the time length from the transmission of the information frame to the reception of the vehicle-mounted computer and the stability of the vehicle-mounted WLAN comprises the following steps:
initially, the loss rate at this time is determined to be one critical number that is not too high to cause a change, and if the loss rate is more than the one critical number, the compensation rate of the loss rate is derived by the following equation (1):
R＝S×T (1)
here, R is the rate of compensation for the loss rate, S is the critical number one at this time, and L is the loss rate;
then, the time length of the information frame from transmission to receiving by the vehicle-mounted computer is determined, and whether the time length of the information frame from transmission to receiving by the vehicle-mounted computer is higher than a second critical number which causes change or not is determined; if the time length of the information frame from the transmission to the receiving of the vehicle-mounted computer is higher than the critical number two, the compensation rate of the time length of the information frame from the transmission to the receiving of the vehicle-mounted computer is derived through the following equation (2):
RR＝TT÷SS (2)
here, RR is a rate of making up for a duration of time from when the information frame is transferred to when the information frame is received by the in-vehicle computer, SS is a second critical number at this time, and TT is a duration of time from when the information frame is transferred to when the information frame is received by the in-vehicle computer;
then, the stability of the vehicle-mounted WLAN is determined, and the stability of the vehicle-mounted WLAN is determined to be not higher than the critical number III which causes change; if the stability of the vehicle-mounted WLAN is higher than the critical number three, the compensation rate of the time length from the transmission of the information frame to the receiving of the vehicle-mounted computer is deduced through the following equation (3):
RRR＝TTT÷SSS (3)
here, RRR is a rate of compensation of the stability of the onboard WLAN, SSS is a critical number three at this time, and TTT is a time duration from transmission of an information frame to reception by the onboard computer;
at this time, the offset rate can be derived via the following equation (4):
U＝R+RR+RRR (4)
here, U is a rate of compensation, R is a rate of compensation for a loss rate, RR is a rate of compensation for a time period from when an information frame is transmitted to when it is received by the in-vehicle computer, and RRR is a rate of compensation for a stability of the in-vehicle WLAN.
The derivation equation (5) for obtaining the offset U using the mode of the combination coefficient can be:
U＝E×R+F×RR+G×RRR (5)
here, E is a coefficient of a loss rate compensation rate, F is a coefficient of a time period from when the information frame is transmitted to when the information frame is received by the in-vehicle computer, and G is a coefficient of a stability compensation rate of the in-vehicle WLAN.
Further, the method for the transfer component to form and transfer the information frame at the moment by means of the offset rate includes:
d-1, deducing the number of the compensation information frames by means of the compensation rate;
d-2, obtaining the information frame for compensation from the delivery queue by means of the number of the information frame for compensation and delivering the information frame for compensation and the information frame to be delivered to the receiving component.
The invention has the beneficial effects that:
according to the invention, by detecting the vehicle-mounted WLAN state information, the vehicle-mounted WLAN state information is used for forming the vehicle-mounted WLAN state response information, the compensation rate is deduced by the vehicle-mounted WLAN state response information, the information frame is lost and compensated, and the information frame with the set retransmission amount is transmitted, so that the loss prevention function is achieved under the condition that the framing assembly complexity of the information of the refrigeration distribution of the medical drugs is not added, the low information transmission duration is synchronously ensured, and the method is still suitable under the condition that the loss rate is not low; by assigning an initial value to the offset rate, the effect of the numerical value of the offset rate at the last time point is eliminated, the deviation is reduced, and the reliability of the formed offset rate is improved; the loss rate, the time length of the information frame from the transmission to the receiving of the vehicle-mounted computer and the stability of the vehicle-mounted WLAN are different from each other, the compensation rate U is obtained by applying a mode of a combination coefficient, so that the compensation rate U is more reliable, the reliability of the derived compensation rate is improved, and the reliability of the derived compensation rate is improved.
Drawings
Fig. 1 is a flowchart of a transfer method of an information transfer platform for refrigerated distribution of medical drugs according to the present invention.
Fig. 2 is a block diagram of an information delivery platform for refrigerated distribution of medical drugs according to the present invention.
Detailed Description
The invention will be further described with reference to the following figures and examples.
As shown in fig. 1 and 2, the information delivery platform for refrigerated distribution of medical drugs includes:
an information delivery platform for refrigerated distribution of medical drugs, comprising:
the single chip microcomputer is connected with the WIFI module, and the vehicle-mounted computer is located in a vehicle-mounted WLAN of the refrigerator car, so that the single chip microcomputer can be connected with the vehicle-mounted computer through the WIFI module, and the single chip microcomputer transmits information of refrigeration distribution of the medical medicines in the refrigerator car to the vehicle-mounted computer to be stored and displayed;
in the invention, the single chip microcomputer comprises a transmission component; in detail, the transfer assembly can include: the receiving unit I, the deriving unit, the compensating unit and the transmitting unit;
correspondingly, the vehicle-mounted computer comprises a receiving component; the receiving assembly can comprise a second receiving unit and a monitoring unit;
the single chip microcomputer serves as an information frame transmitting side, and the vehicle-mounted computer serves as an information frame receiving side;
the receiving unit I is used for receiving the state response message of the vehicle-mounted WLAN transmitted by the last information frame of the receiving assembly;
the deduction unit is used for deducing the compensation rate by means of the state response message of the vehicle-mounted WLAN;
and a transfer unit for forming and transferring the information frame at this time by means of the offset rate.
Further, the derivation unit is further configured to assign an initial value to the offset rate;
and executing variation on the initialized value of the make-up rate by means of the state response message of the vehicle-mounted WLAN to form the make-up rate.
Further, the status response message of the vehicle-mounted WLAN includes: the deduction unit is further used for deducing the compensation rate of the loss rate, the compensation rate of the time length of the information frame from the transmission to the receiving of the vehicle-mounted computer and the compensation rate of the stability of the vehicle-mounted WLAN;
obtaining a coefficient of a compensation rate of the loss rate, a coefficient of a compensation rate of a time length from the transmission of the information frame to the reception of the information frame by the vehicle-mounted computer and a coefficient of a compensation rate of the stability of the vehicle-mounted WLAN;
and deducing the compensation rate by means of the compensation rate of the loss rate, the compensation rate of the time length from the transmission of the information frame to the reception of the vehicle-mounted computer, the compensation rate of the stability of the vehicle-mounted WLAN, the coefficient of the compensation rate of the loss rate, the coefficient of the compensation rate of the time length from the transmission of the information frame to the reception of the vehicle-mounted computer and the coefficient of the stability compensation rate of the vehicle-mounted WLAN.
Further, the information frame at this time includes an information frame for making up and an information frame to be transmitted, and the transmitting unit is further configured to derive the number of the information frames for making up by means of the rate of making up;
obtaining the information frame for compensation from a delivery queue by virtue of the number of the information frame for compensation and delivering the information frame for compensation and the information frame to be delivered to the receiving component.
Further, the receiving unit two is configured to receive the information frame transmitted by the transmitting component;
and the monitoring unit is used for forming a state response message of the vehicle-mounted WLAN by virtue of the information frame, and the state response message of the vehicle-mounted WLAN is used for commanding the transmission assembly to execute loss compensation.
Further, the information frame includes a sequence number of the information frame and a time point when the transmission unit starts to transmit the information frame, and the monitoring unit is further configured to form a status response message of the vehicle-mounted WLAN according to the sequence number of the information frame and the time point when the transmission unit starts to transmit the information frame. The information frame is the information frame of the information of the refrigeration distribution of the medical drugs in the refrigerator car.
The transfer method of the information transfer platform for the refrigerated distribution of the medical medicines comprises the following steps:
the single chip microcomputer of the vehicle-mounted refrigerating device distribution system transmits refrigerating distribution information of the medical drugs in the refrigerator car to the vehicle-mounted computer for storage and display;
the method for transmitting the information of refrigeration distribution of the medical drugs in the refrigerator car to the vehicle-mounted computer by the single chip microcomputer comprises the following steps:
upon performing the information frame transfer, the receiving component receives the information frame transferred by the transfer unit of the transfer component via the receiving unit; then, the monitoring unit of the receiving component detects the vehicle-mounted WLAN state information transmitted by the information frame by means of the received information frame; the vehicle-mounted WLAN state message can have the loss rate of the information frame of the vehicle-mounted WLAN, the time length from the transmission of the information frame to the receiving of the information frame by the vehicle-mounted computer and the stability of the vehicle-mounted WLAN; then, the vehicle-mounted WLAN state information is transmitted to a derivation unit of the transmission component, the derivation unit performs derivation on the vehicle-mounted WLAN state information to obtain a compensation rate, and the compensation rate is transmitted to a compensation unit; the compensation unit forms an information frame for compensation by virtue of the compensation rate, and transmits the information frame for compensation to the transmission unit; the transfer unit transfers the information frame for compensation to the receiving component together with the information frame to be transferred; the receiving component repeatedly executes the above processes after receiving the information frame; by detecting the vehicle-mounted WLAN state information, the loss compensation is carried out on the information frame and the information frame with the set retransmission amount is transmitted, so that the loss prevention performance can be achieved.
A-1, the receiving component receives the information frame transmitted by the transmitting component;
a-2, the receiving component forms a vehicle-mounted WLAN state response message serving as a vehicle-mounted WLAN state message by virtue of the information frame, and the vehicle-mounted WLAN state response message is used for commanding the transmitting component to execute loss compensation;
a-3, the transmitting component receives the state response message of the vehicle-mounted WLAN transmitted by the last information frame of the receiving component;
a-4, the transmission component deduces the compensation rate by means of the state response message of the vehicle-mounted WLAN;
a-5, the transfer component constructs and transfers the information frame at that time by virtue of the offset rate.
The method comprises the following specific steps:
the receiving component receives the information frame transmitted by the transmitting component, and the receiving component is provided with:
in the present invention, the delivery component and the receiving component perform information frame delivery via an unreliable information delivery service; the receiving unit of the receiving component is scheduled by the receiving program in the receiving component, and receives the information frame transmitted by the transmitting unit of the transmitting component in the parameter transmitted in the receiving program.
Further, the method for the receiving component to construct the status response message of the vehicular WLAN serving as the vehicular WLAN status message by means of the information frame includes:
after the receiving unit of the receiving component receives the information frame transmitted by the transmitting component, the monitoring unit of the receiving component deduces the received information frame to form a state response message of the vehicle-mounted WLAN; here, the status response message of the vehicle-mounted WLAN may include a loss rate, a duration from when the information frame is transmitted to when the information frame is received by the vehicle-mounted computer, and/or a stability of the vehicle-mounted WLAN; the transmission state of the vehicle-mounted WLAN can be represented by the loss rate, the time length from the transmission of the information frame to the receiving of the vehicle-mounted computer and/or the stability of the vehicle-mounted WLAN; correspondingly, the monitoring unit deduces the loss rate of the vehicle-mounted WLAN in the transmission state, the time length from the transmission of the information frame to the reception of the vehicle-mounted computer and/or the stability of the vehicle-mounted WLAN by deducing the received information frame.
For example, each time 1000ms is used as a total duration, that is, the monitoring unit deduces the received information frame after each 1000ms, deduces the loss rate of the information frame, the duration of the information frame from the transmission to the reception by the vehicle-mounted computer and the stability of the vehicle-mounted WLAN, and these information can respond to the transmission state of the vehicle-mounted WLAN at this time, and then form a state response message of the vehicle-mounted WLAN and transmit the state response message to the transmission component; the transmission component performs information frame loss compensation by means of the state response message of the vehicle-mounted WLAN; here, the use of 1000ms as a total duration is only an example, and the total duration can be 1500ms or 2500 ms. The frame header of the information frame comprises the sequence number of the information frame and the time point when the transmission unit starts to transmit the information frame. The sequential numbering is sequentially increased by one from the beginning.
Further, the method for forming the status response message of the vehicle-mounted WLAN includes:
and forming a state response message of the vehicle-mounted WLAN by means of the sequence number of the information frame and the time when the transmission unit starts to transmit the information frame. That is, the monitoring unit performs derivation by means of the sequence number of the information frames in the information frame and the time when the transmission unit starts to transmit the information frames, so as to form the status response message of the vehicle-mounted WLAN.
In detail, the monitoring unit is set to use 1000ms as a total duration, deduces a plurality of received information frames, and deduces the loss rate of the vehicular WLAN by means of the sequence number of the information frames in the information frames; then deducing the time length of the information frame of the vehicle-mounted WLAN from the time of transmitting to the time of receiving by the vehicle-mounted computer and the stability of the vehicle-mounted WLAN by means of the time point when the transmitting unit in the information frame starts to transmit the information frame; then the loss rate, the time length from the transmission to the receiving of the information frame by the vehicle-mounted computer and the stability of the vehicle-mounted WLAN are used as the state response message of the vehicle-mounted WLAN and transmitted to the transmission component; after the execution of the above-mentioned flow is finished, the same flow is used to treat a plurality of the information frames of the following 1000ms, and the flow is repeatedly executed; the method for deriving the loss rate of the vehicular WLAN by means of the sequence number of the information frames in the information frame can be as follows: reading the sequence numbers in a plurality of received information frames, summing up the number of the read sequence numbers to obtain the number of the actually received information frames, adding a difference value obtained by subtracting the minimum value of the sequence numbers from the maximum value of the sequence numbers to obtain the total number of the transmitted information frames, and dividing a difference value obtained by subtracting the number of the actually received information frames from the total number of the transmitted information frames by the total number of the transmitted information frames to obtain a quotient value serving as the loss rate of the vehicle-mounted WLAN; the method for deducing the time length from the transmission of the information frame of the vehicle-mounted WLAN to the reception of the information frame by the vehicle-mounted computer by means of the time point when the transmission unit in the information frame starts to transmit the information frame can be as follows: the receiving unit records the time point when receiving an information frame, then subtracts the time point when the transmitting unit in the information frame starts to transmit the information frame from the time point to obtain a difference value two corresponding to the information frame, and then divides the sum value obtained by adding the difference values two corresponding to a plurality of received information frames by the number of the actually received information frames, so that the obtained quotient value serves as the time length from the transmission of the information frame of the vehicle-mounted WLAN to the reception of the vehicle-mounted computer; the method of deriving the stability of the in-vehicle WLAN by means of the point in time when the transfer unit in the information frame starts transferring the information frame can be: and the difference obtained by subtracting the minimum number in the difference two from the maximum number in the difference two corresponding to a plurality of received information frames serves as the stability of the WLAN.
Further, the method for the transmitting component to receive the status response message of the vehicle-mounted WLAN, which is transmitted by the last information frame of the receiving component, includes:
a derivation unit of the transmission component receives the state response message of the vehicle-mounted WLAN transmitted by the monitoring unit; here, the status response message of the onboard WLAN is the status response message of the onboard WLAN obtained by the receiving component from the information frame last transmitted to the receiving component.
Further, the method for the delivery component to derive the offset rate by means of the status response message of the vehicle-mounted WLAN includes:
after receiving the state response message of the vehicle-mounted WLAN, the derivation unit derives and derives the compensation rate of the current vehicle-mounted WLAN transmission performance by means of the state response message of the vehicle-mounted WLAN; when the transmission performance of the vehicle-mounted WLAN is good, the magnitude of the formed compensation rate is smaller; when the transmission performance of the in-vehicle WLAN is poor, the magnitude of the configured offset rate is larger.
In detail, the method for the delivery component to derive the offset rate by using the status response message of the vehicle-mounted WLAN includes the following steps:
b-1, giving an initial value to the offset rate;
and B-2, changing the initial value of the compensation rate by means of the state response message of the vehicle-mounted WLAN to form the compensation rate.
Further, after receiving the state response message of the vehicle-mounted WLAN, the derivation unit assigns an initial value to the offset rate.
Further, the monitoring unit is set to use 1000ms as a total duration to perform vehicle-mounted WLAN state monitoring, the compensation rate is determined by the vehicle-mounted WLAN state response message, the vehicle-mounted WLAN state response message is formed by the monitoring unit by means of the vehicle-mounted WLAN transmission performance of each 1000ms, and therefore the compensation rate is a continuously changing number by means of the vehicle-mounted WLAN transmission performance; when the offset rate is derived each time, an initial value needs to be given to the offset rate, as if the initial value is NULL, so as to prevent the derived offset rate value at the current time from being interfered by the offset rate value at the previous time.
By giving an initial value to the offset rate, the interference of the numerical value of the offset rate at the last time point is cleared, the error is reduced, and the reliability of the formed offset rate is improved.
After the initial value is given to the compensation rate, the initial value given to the compensation rate is changed by means of the state response message of the vehicle-mounted WLAN, and the compensation rate is formed.
Further, the method for forming the offset rate by changing the initial value of the offset rate through the status response message of the vehicle-mounted WLAN includes:
c-1, deducing the compensation rate of the loss rate, the compensation rate of the time length from the transmission of the information frame to the reception of the information frame by the vehicle-mounted computer and the compensation rate of the stability of the vehicle-mounted WLAN;
c-2, obtaining a coefficient of the compensation rate of the loss rate, a coefficient of the compensation rate of the duration from the transmission of the information frame to the reception of the vehicle-mounted computer and a coefficient of the compensation rate of the stability of the vehicle-mounted WLAN;
and C-3, deducing the compensation rate by means of the compensation rate of the loss rate, the compensation rate of the time length from the transmission of the information frame to the receiving of the vehicle-mounted computer, the compensation rate of the stability of the vehicle-mounted WLAN, the coefficient of the compensation rate of the loss rate, the coefficient of the compensation rate of the time length from the transmission of the information frame to the receiving of the vehicle-mounted computer and the coefficient of the stability compensation rate of the vehicle-mounted WLAN.
Further, the method for the derivation unit to respectively derive the rate of making up for the loss rate, the rate of making up for the duration of the information frame from transmission to reception by the onboard computer, and the rate of making up for the stability of the onboard WLAN, by means of the loss rate, the duration of the information frame from transmission to reception by the onboard computer, and the stability of the onboard WLAN, includes:
initially, the loss rate at this time is determined to be one critical number that is not too high to cause a change, and if the loss rate is more than the one critical number, the compensation rate of the loss rate is derived by the following equation (1):
R＝S×T (1)
here, R is the rate of compensation for the loss rate, S is the critical number one at this time, and L is the loss rate;
then, the time length of the information frame from transmission to receiving by the vehicle-mounted computer is determined, and whether the time length of the information frame from transmission to receiving by the vehicle-mounted computer is higher than a second critical number which causes change or not is determined; if the time length of the information frame from the transmission to the receiving of the vehicle-mounted computer is higher than the critical number two, the compensation rate of the time length of the information frame from the transmission to the receiving of the vehicle-mounted computer is derived through the following equation (2):
RR＝TT÷SS (2)
here, RR is a rate of making up for a duration of time from when the information frame is transferred to when the information frame is received by the in-vehicle computer, SS is a second critical number at this time, and TT is a duration of time from when the information frame is transferred to when the information frame is received by the in-vehicle computer;
then, the stability of the vehicle-mounted WLAN is determined, and the stability of the vehicle-mounted WLAN is determined to be not higher than the critical number III which causes change; if the stability of the vehicle-mounted WLAN is higher than the critical number three, the compensation rate of the time length from the transmission of the information frame to the receiving of the vehicle-mounted computer is deduced through the following equation (3):
RRR＝TTT÷SSS (3)
here, RRR is a rate of compensation of the stability of the onboard WLAN, SSS is a critical number three at this time, and TTT is a time duration from transmission of an information frame to reception by the onboard computer;
at this time, the offset rate can be derived via the following equation (4):
U＝R+RR+RRR (4)
here, U is a rate of compensation, R is a rate of compensation for a loss rate, RR is a rate of compensation for a time period from when an information frame is transmitted to when it is received by the in-vehicle computer, and RRR is a rate of compensation for a stability of the in-vehicle WLAN.
The compensation rate U derived by means of the state response message of the vehicle-mounted WLAN directly acts on the compensation effect of information transmission of refrigeration distribution of the medical medicines in the refrigerator car; the reliable or unreliable derivation of the compensation rate can act on data transmission and compensation effects, and if the derived compensation rate is higher than the actually required compensation rate, the information compensation of the refrigeration distribution of the medical medicines in the refrigerator car is over-utilized to increase the load of the information transmission of the vehicle-mounted WLAN; if the deduced remedy rate is lower than the really needed remedy rate, the loss of the information frame formed by the vehicle-mounted WLAN state cannot be effectively remedied; in addition, the loss rate and the time length from the transmission of the information frame to the receiving of the vehicle-mounted computer are different from the effect of the stability of the vehicle-mounted WLAN on the information frame transmission, so that the mode of the combination coefficient can be applied to obtain the compensation rate U, and the compensation rate U is more reliable.
In detail, the derivation equation (5) for obtaining the offset rate U using the mode of the combination coefficient can be:
U＝E×R+F×RR+G×RRR (5)
here, E is a coefficient of a loss rate compensation rate, F is a coefficient of a time period from when the information frame is transmitted to when the information frame is received by the in-vehicle computer, and G is a coefficient of a stability compensation rate of the in-vehicle WLAN.
Here, the coefficient of the rate of compensation for the loss rate, the coefficient of the rate of compensation for the duration from transmission to reception by the in-vehicle computer of the information frame, and the coefficient of the rate of compensation for the stability of the in-vehicle WLAN may be constants set in advance, or may vary depending on the transmission state of the in-vehicle WLAN.
Because the loss rate and the time length from the transmission of the information frame to the reception of the vehicle-mounted computer are different from the effect of the stability of the vehicle-mounted WLAN on the information frame, the compensation rate U is obtained by using the mode of the combination coefficient, so that the compensation rate U is more reliable, and the reliability of deriving the compensation rate is improved.
Further, the method for the transfer component to form and transfer the information frame at the moment by means of the offset rate includes:
the compensation unit receives the compensation rate information transmitted by the derivation unit, and then derives the number of required compensation information frames according to the compensation rate, and the derivation equation (6) is as follows:
I＝U×W (6)
here, U is the offset rate derived by the deriving unit, W is the number of information frames that have to be transmitted at this time, and I is the number of offset information frames.
Thus, constructing and transmitting the information frame at this time by means of the offset rate can include the following procedures:
d-1, deducing the number of the compensation information frames by means of the compensation rate;
d-2, obtaining the information frame for compensation from the delivery queue by means of the number of the information frame for compensation and delivering the information frame for compensation and the information frame to be delivered to the receiving component.
For example, setting the monitoring unit to use 1000ms as a total duration to form a status response message of the vehicle-mounted WLAN; the monitoring unit forms a state response message of the vehicle-mounted WLAN by means of the information frame transmitted by the transmission assembly in the last 1000ms, and the deduction unit deduces that the compensation rate U is thirty-five percent by means of the state response message of the vehicle-mounted WLAN; the number W of the information frames of the information frame to be transmitted in the subsequent 1000ms is two hundred information frames, so that the number I of the compensation information frames is seventy, namely seventy information frames; seventy information frames for compensation are read out by the compensation unit from a stack area storing the information frames transmitted in the last 1000ms, and the information frames for compensation are transmitted to the transmission unit; the transmitting unit transmits the information frame for making up and the information frame to be transmitted (i.e. the information frame which needs to be transmitted in the next 1000 ms)) as the information frame at this time to the receiving component, and the receiving unit of the receiving component synchronously receives the information frame and the information frame for making up.
Deducing the number of the required compensation information frames by means of the compensation rate, and jointly transmitting the information frames for compensation and the information frames to be transmitted to form additional transmission of the information frames to be transmitted, so that the information frames for compensation can be efficiently transmitted under the conditions that the vehicle-mounted WLAN is lost and the stability of the vehicle-mounted WLAN is unstable, the loss resistance is good, and the information performance of cold storage and distribution of the medical medicines in the refrigerator car is ensured; the information of the refrigeration and distribution of the medical drugs in the refrigerator car comprises the preservation temperature information of the medical drugs in the refrigerator car and the system transportation state information of the distribution system of the vehicle-mounted refrigeration device.
The present invention has been described in an illustrative manner by the embodiments, and it should be understood by those skilled in the art that the present disclosure is not limited to the embodiments described above, but is capable of various changes, modifications and substitutions without departing from the scope of the present invention.
Claims (10)
1. An information delivery platform for refrigerated distribution of medical drugs, comprising:
the single chip microcomputer of the distribution system of the vehicle-mounted refrigeration device is connected with the WIFI module, and the vehicle-mounted computer is located in a vehicle-mounted WLAN of the refrigerator car;
the single chip microcomputer comprises a transmission component; the transfer assembly can include: the receiving unit I, the deriving unit, the compensating unit and the transmitting unit;
the vehicle-mounted computer comprises a receiving component; the receiving assembly can comprise a second receiving unit and a monitoring unit;
the receiving unit I is used for receiving the state response message of the vehicle-mounted WLAN transmitted by the last information frame of the receiving assembly;
the deduction unit is used for deducing the compensation rate by means of the state response message of the vehicle-mounted WLAN;
and a transfer unit for forming and transferring the information frame at this time by means of the offset rate.
The derivation unit is also used for assigning an initial value to the offset rate;
and executing variation on the initialized value of the make-up rate by means of the state response message of the vehicle-mounted WLAN to form the make-up rate.
2. The information delivery platform for refrigerated delivery of medical drugs according to claim 1, wherein the onboard WLAN status response message comprises: the deduction unit is further used for deducing the compensation rate of the loss rate, the compensation rate of the time length of the information frame from the transmission to the receiving of the vehicle-mounted computer and the compensation rate of the stability of the vehicle-mounted WLAN;
obtaining a coefficient of a compensation rate of the loss rate, a coefficient of a compensation rate of a time length from the transmission of the information frame to the reception of the information frame by the vehicle-mounted computer and a coefficient of a compensation rate of the stability of the vehicle-mounted WLAN;
and deducing the compensation rate by means of the compensation rate of the loss rate, the compensation rate of the time length from the transmission of the information frame to the reception of the vehicle-mounted computer, the compensation rate of the stability of the vehicle-mounted WLAN, the coefficient of the compensation rate of the loss rate, the coefficient of the compensation rate of the time length from the transmission of the information frame to the reception of the vehicle-mounted computer and the coefficient of the stability compensation rate of the vehicle-mounted WLAN.
3. The information delivery platform for refrigerated distribution of medical drugs according to claim 1, wherein the frame of information at this time includes a frame of information for compensation and a frame of information to be delivered, and the delivery unit is further configured to derive the number of frames of information for compensation by the compensation rate;
obtaining the information frame for compensation from a delivery queue by virtue of the number of the information frame for compensation and delivering the information frame for compensation and the information frame to be delivered to the receiving component.
4. The information delivery platform for refrigerated distribution of medical drugs according to claim 1, wherein the second receiving unit is configured to receive the information frame delivered by the delivery component;
and the monitoring unit is used for forming a state response message of the vehicle-mounted WLAN by virtue of the information frame, and the state response message of the vehicle-mounted WLAN is used for commanding the transmission assembly to execute loss compensation.
5. The information delivery platform for refrigerated delivery of medical drugs according to claim 1, wherein the information frame comprises a sequence number of the information frame and a time point when the delivery unit starts delivering the information frame, and the monitoring unit is further configured to construct a status response message of the vehicle-mounted WLAN according to the sequence number of the information frame and the time point when the delivery unit starts delivering the information frame.
6. A transfer method of an information transfer platform for refrigerated distribution of medical drugs is characterized by comprising the following steps:
the single chip microcomputer of the vehicle-mounted refrigerating device distribution system transmits refrigerating distribution information of the medical drugs in the refrigerator car to the vehicle-mounted computer for storage and display;
the method for transmitting the information of refrigeration distribution of the medical drugs in the refrigerator car to the vehicle-mounted computer by the single chip microcomputer comprises the following steps:
a-1, the receiving component receives the information frame transmitted by the transmitting component;
a-2, the receiving component forms a state response message of the vehicle-mounted WLAN by virtue of the information frame, and the state response message of the vehicle-mounted WLAN is used for commanding the transmitting component to execute loss compensation;
a-3, the transmitting component receives the state response message of the vehicle-mounted WLAN transmitted by the last information frame of the receiving component;
a-4, the transmission component deduces the compensation rate by means of the state response message of the vehicle-mounted WLAN;
a-5, the transfer component constructs and transfers the information frame at that time by virtue of the offset rate.
7. The method for transferring the information transfer platform for refrigerated distribution of medical drugs according to claim 6, wherein the method for the receiving component to construct the status response message of the vehicle-mounted WLAN by means of the information frame comprises the following steps:
after the receiving unit of the receiving component receives the information frame transmitted by the transmitting component, the monitoring unit of the receiving component deduces the received information frame to form a state response message of the vehicle-mounted WLAN; here, the status response message of the vehicle-mounted WLAN includes a loss rate, a time period from when the information frame is transmitted to when the information frame is received by the vehicle-mounted computer, and/or a stability of the vehicle-mounted WLAN; correspondingly, the monitoring unit deduces the loss rate of the vehicle-mounted WLAN in the transmission state, the time length from the transmission of the information frame to the reception of the vehicle-mounted computer and/or the stability of the vehicle-mounted WLAN by deducing the received information frame.
8. The method for transferring the information transfer platform for refrigerated distribution of medical drugs according to claim 6, wherein the method for forming the status response message of the onboard WLAN comprises:
forming a state response message of the vehicle-mounted WLAN by means of the sequence number of the information frame and the time point when the transmission unit starts to transmit the information frame; the method for receiving the state response message of the vehicle-mounted WLAN transmitted by the last information frame of the receiving component by the transmitting component comprises the following steps:
a derivation unit of the transmission component receives the state response message of the vehicle-mounted WLAN transmitted by the monitoring unit; here, the status response message of the onboard WLAN is the status response message of the onboard WLAN obtained by the receiving component from the information frame last transmitted to the receiving component.
9. The method for delivering the information delivery platform for refrigerated delivery of medical drugs according to claim 8, wherein the method for the delivery component to derive the offset rate by using the status response message of the onboard WLAN comprises:
b-1, giving an initial value to the offset rate;
and B-2, changing the initial value of the compensation rate by means of the state response message of the vehicle-mounted WLAN to form the compensation rate.
10. The method for transferring the information transfer platform for refrigerated distribution of medical drugs according to claim 8, wherein the method for forming the offset rate by varying the initial value of the offset rate through the status response message of the onboard WLAN comprises:
c-1, deducing the compensation rate of the loss rate, the compensation rate of the time length from the transmission of the information frame to the reception of the information frame by the vehicle-mounted computer and the compensation rate of the stability of the vehicle-mounted WLAN;
c-2, obtaining a coefficient of the compensation rate of the loss rate, a coefficient of the compensation rate of the duration from the transmission of the information frame to the reception of the vehicle-mounted computer and a coefficient of the compensation rate of the stability of the vehicle-mounted WLAN;
c-3, deducing the compensation rate by means of the compensation rate of the loss rate, the compensation rate of the time length from the transmission of the information frame to the receiving of the vehicle-mounted computer, the compensation rate of the stability of the vehicle-mounted WLAN, the coefficient of the compensation rate of the loss rate, the coefficient of the compensation rate of the time length from the transmission of the information frame to the receiving of the vehicle-mounted computer and the coefficient of the compensation rate of the stability of the vehicle-mounted WLAN;
the method for deducing the make-up rate of the loss rate, the make-up rate of the time length from the transmission of the information frame to the reception of the vehicle-mounted computer and the stability of the vehicle-mounted WLAN respectively by the deduction unit by means of the loss rate, the time length from the transmission of the information frame to the reception of the vehicle-mounted computer and the stability of the vehicle-mounted WLAN comprises the following steps:
initially, the loss rate at this time is determined to be one critical number that is not too high to cause a change, and if the loss rate is more than the one critical number, the compensation rate of the loss rate is derived by the following equation (1):
R＝S×T (1)
here, R is the rate of compensation for the loss rate, S is the critical number one at this time, and L is the loss rate;
then, the time length of the information frame from transmission to receiving by the vehicle-mounted computer is determined, and whether the time length of the information frame from transmission to receiving by the vehicle-mounted computer is higher than a second critical number which causes change or not is determined; if the time length of the information frame from the transmission to the receiving of the vehicle-mounted computer is higher than the critical number two, the compensation rate of the time length of the information frame from the transmission to the receiving of the vehicle-mounted computer is derived through the following equation (2):
RR＝TT÷SS (2)
here, RR is a rate of making up for a duration of time from when the information frame is transferred to when the information frame is received by the in-vehicle computer, SS is a second critical number at this time, and TT is a duration of time from when the information frame is transferred to when the information frame is received by the in-vehicle computer;
then, the stability of the vehicle-mounted WLAN is determined, and the stability of the vehicle-mounted WLAN is determined to be not higher than the critical number III which causes change; if the stability of the vehicle-mounted WLAN is higher than the critical number three, the compensation rate of the time length from the transmission of the information frame to the receiving of the vehicle-mounted computer is deduced through the following equation (3):
RRR＝TTT÷SSS (3)
here, RRR is a rate of compensation of the stability of the onboard WLAN, SSS is a critical number three at this time, and TTT is a time duration from transmission of an information frame to reception by the onboard computer;
at this time, the offset rate can be derived via the following equation (4):
U＝R+RR+RRR (4)
here, U is a rate of compensation, R is a rate of compensation for a loss rate, RR is a rate of compensation for a duration from when an information frame is transmitted to when it is received by the in-vehicle computer, and RRR is a rate of compensation for a stability of the in-vehicle WLAN;
the method for the transfer component to form and transfer the information frame at the moment by means of the offset rate comprises the following steps:
d-1, deducing the number of the compensation information frames by means of the compensation rate;
d-2, obtaining the information frame for compensation from the delivery queue by means of the number of the information frame for compensation and delivering the information frame for compensation and the information frame to be delivered to the receiving component.
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